E. the current will decrease. Naturally the mass becomes effective only when it moves. #Aryaaiet #College #School #Education #Institute #Aryainstitute Current may be compared to mass of a body and voltage with the speed at which the body is able to move. Then raise the voltage above 110 slowly . A basic electrical engineering equation called Ohm's law spells out how the three terms relate. In this circuit, the voltage drop across these parallel resistors is the same as that of power supply. If the circuit is a "series circuit", the current is held constant all throughout the circuit. At first, these concepts can be difficult to understand because we cannot \"see\" them. So, voltage is inlfuence the current in closed circuits only. A voltage will influence current only if the circuit is: A. open B. insulated C. high resistance D. closed https://www.smpstroubleshooting.com What is the color code for a 220 5% resistor? A. Performance & security by Cloudflare, Please complete the security check to access. The current source requires that 0.01A flow through the open circuit, but the open circuit won't allow any current through it. Current and voltage are important concepts when it comes to electricity. B. If the circuit is parallel, the voltage is constant all throughout the circuit. HDFC bank has been named among 50 most valuable banks in 2014. Please enable Cookies and reload the page. Answer: Option D Similarly other electrical devices may stop working, or may even burst into flames if an overvoltage is delivered to the circuit. A. Relation between Voltage and Current. In case short circuits, voltage is zero and current will be maximum. Engineering Quizzes Electronics Engineering. But that's only if you're holding the current I constant in Ohm's law. This is because both the resistors have common potential points shared between them (point A & point B), so the voltage will be the same but the current will be different. The amount of current in a circuit depends on the voltage supplied: if the voltage is too high, then the wire may melt and the light bulb would have "burned out real time". C. Has high resistance. New questions in Physics. You say that if you increase the resistance, the voltage will rise. Chemical reactions, radiant energy, and the influence of magnetism on conductors are a few ways in which voltage may be produced. A micro current flows over the outside PN surface NO Damage Yet, if the voltage is reduced the diode is still good to use. It has got 45th rank. • • Even t… Are 90° out of phase If the vector diagram of two AC waveforms is a right angle, then the waves___. The current source will create an infinite voltage across the open circuit, in an attempt to force current through the open circuit. A voltage can exist without a current; however a current requires voltage to exist. state e law of magnetism PLEASE ANSWER WITH FULL SOLUTIONPLEASE DON'T SPAM The reason is that some current of is passing through and branch. Feb 15, 2013 - A voltage will influence current only if the circuit is ? Though ULIPs (Unit Linked Insurance Plan) are considered to be a better investment vehicle it has failed to capture the imagination of the retail investors in India because of which of the following reasons? Though, these two are related to each other and help how electricity works, they are two different concepts. Now suppose the body rams with an object, the extent of damage will depend on the speed of the body. The maximum voltage on the reverse biased diode will be 100 V 50 V 25 V 12.5 V ⇒ A TV receiver has 20 kV EHT supply and total beam current (for 3 electron guns) of 1500 μA. It's written like this: I … A normal diode that is rated at 100 peak inverse voltage withstanding ability. Wells Fargo & Co. has got first rank in this list. learn, fundamentals, circuits, ideal-independent, voltage, current This preview shows page 9 - 11 out of 11 pages.. A. If the voltmeter has a low resistance, it will draw a substantial amount of current. Answer. Method: Current = Voltage / Resistance (I= V/ R) This equation is is known as Ohm's Law. What happen in a circuit i f the voltage is increased: A. the current will increase. D. Is closed. Components of an electrical circuit or electronic circuit can be connected in series, parallel, or series-parallel. Actually, at the moment I can’t think of any (feel free to leave a comment if you can help me out here...). The answer is: "5. This is the electronics questions and answers section on "Voltage and Current" with explanation for various interview, competitive examination and entrance test. Regulatory jurisdictional fight between SEBI and IRDA, C. They offer lesser returns compared to traditional insurance policies. A voltage will affect electricity current only if the circuit. Together voltage and current are part of the Ohms law that provides the basic backbone of electricity. Question: A voltage will influence current only if the circuit is: Option A): closed Option B): high resistance Option C): insulated B. the resistance will decrease. The linear nature of a resistor’s current–voltage relationship makes the current-to-voltage conversion somewhat redundant: (directly) increasing the voltage has, in general, the same effect a… Is insulated. Is the right answer!! A voltage will influence current only if the circuit is insulated closed open high resistance O 14 4 5 O Cloudflare Ray ID: 6140ca3638d33989 If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. When a voltmeter is connected across a circuit, it shunts the circuit. 4 V B. The current will drop to half of its original value." But the current isn't constant if you're using a voltage source--it depends on the load. D. the current and resistance will increase. Which of the following is not a primary function of a Bank? What is the phase difference between current and voltage in an AC circuit containing resistance only? Rather, the voltage is constant, and as you raise the resistance, then the current will drop accordingly. If the voltage of a circuit is 240 and the resistance of the circuit is 30 ohms, how much current would be present in the circuit? Influence of a Voltmeter in a Circuit The purpose of a voltmeter is to indicate the potential difference between two points in a circuit. The Chameli Devi Jain Award is given for an outstanding woman ____? This bank belongs to which country. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. When beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance. A voltage will influence current only if the circuit is 2 See answers Swabha Swabha Only if the circuit is CLOSE.. iamakul2004 iamakul2004 Closed. Answer to 2. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. 60 V C. 15 V D. 0.25 V A voltage will influence current only if the circuit is: Which resistive component is designed to be temperature sensitive? We now use a revised version of ohm's law, V=IR, to calculate the voltages across the battery and the resistor. C. the resistance will increase. A phase shift between voltage and current will only occur in reactive circuits. At open terminals voltage is infinity that is maximum, where as current will be zero. Red, Red, Brown, Gold B. Orange, Orange, Black, Gold C. Red, Red, Black, Gold BY JAMES SHREEVE, REPUBLISHED FROM THE PAGES In a circuit that has both capacitance and resistance, the current will lead the voltage___. hence the maximum level that the electrical equipment should be able to withstand A. In other words, the current is inversely proportional to the resistance. Your IP: 165.22.217.135 Meaning, the total current is equal to the current in each resistors, regardless of the measure/value of their resistance. As the current flows, it passes through circuit elements. These are the three basic building blocks required to manipulate and utilize electricity. If the numerator of a fraction remains the same and its denominator doubles, the value of the fraction is halved. Since there is 9Ω in the circuit and the voltage source is 1.5V, the current going through the circuit is I= 1.5V/9Ω= 0.17A. To solve the circuit using the voltage divider, we have to find the Thevenin equivalent of the colored circuit: Voltage can be generated by means other than rubbing certain types of materials against each other. Current flows in closed circuits only. I can’t think of too many situations in which you would need to use a VCC to carefully control the current through a resistive load. resistance and reactances, so if we put resistance as zero in ohm’s law, the voltage will be too low due to high value of current flowing through the conductor as the circuit resistance is almost zero. ∴Vs = … Current is equal to the voltage divided by the resistance. Solved examples with detailed answer description, explanation are given and it would be easy to understand. A voltage will influence current only if the circuit is: A. open B. insulated C. high resistance D. closed The voltage is equivalent to the water pressure, the current is equivalent to the flow rate and the resistance is like the pipe size. A little more voltage & very quickly milliampDamaging current … 1 only 2 and 3 only 2 and 4 only data insufficient ⇒ The voltage across the secondary of the transformer in a half wave rectifier (without any filter circuit) is 25 volts. 8 A Applying an overcurrent device (fuse or circuit breaker) within its marked interrupting rating will ensure that the overcurrent device can safely open the circuit in a … Components connected in series are connected along a single conductive path, so the same current flows through all of the components but voltage is dropped (lost) across each of the resistances. Current flows from the voltage source, through the circuit, to ground. The two simplest of these are called series and parallel and occur frequently. One cannot see with the naked eye the energy flowing through a wire or the voltage of a battery sitting on a table. V = I x R. As in case of short circuit, there will be no load i.e. If the branch was broken at some point, for example as: we could apply the voltage division rule and say But for the original circuit, the equation above is not correct. Respective examples of these three sources of voltage are batteries, solar cells, and generators (such as the “alternator” unit under the hood of your automobile). Is open.