Power of electric circuit is - A. V. R. B. V²R V² С. D. V².R.I. R
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Q: The electric power of a lamp that carries 2-A at 120-V is
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A: Electrical power
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A: In a parallel circuit the power dissipated is given by P=V2R
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A: Given C = 5 mF R1= 3 kΩ R2= 12 kΩ Since , R1 and R2 are in parallel . Therefore equivalent…
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Q: 4. Determine the eğuivalent resistance of the complex circuit shown below. br 42 bんを
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Q: 3) What is the potential difference supplied by the power source? V: I1.0A O R.: 3.0n. R.: 3.0n
A: solution is given as
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A: A battery is used to give power to the connected devices or machines.
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- To obtain an accurate measurement, the resistance of a real voltmeter must be a. None of the above b. as big as possible c. zero d. infinite e. as little as possibleA heating element is to deliver 1.00 kw when operated on a 220 V circuit. The current flow when it is in operation will be: a. 0.220 A b. 4.55 A c. 220 A d. 1000 A or more e. none of theseWhich of the following best describes voltage? a. Amount of charge stored by a battery b. Amount of power stored by a battery c. Difference in potential energy per unit charge when measured between two points d. Amount of potential energy at a given location e. Difference in charge between two points
- 2. Find the current when 1.90 nC jumps between your comb and hair over a 0.800–μs time interval. This is not and will not be graded. For a series circuit, the equivalent (total) resistance of the circuit is _____. A) equal to the largest resistance in the circuit. B) greater than the sum of all the resistances in the circuit. C) equal to the sum of the individual resistances. D) less than the smallest resistance in circuit.In the circuit diagram below, mark the circuit components with their names. A V Voltmeter Wire Battery Ammeter Resistor
- In the following diagram, the current passing throueh 20 Ohm is 1.5 A. 20-2 15A www 302 a 402 50n Find emf of the power supply. a. 70.6 V b. 55.0 V c. 15.6 V d. 23.7 VYou want to create a circuit with two light bulbs. How would you design the circuit to make both light bulbsshine brightly? Explain.A high resistance light bulb and a low resistance light bulb are connected in parallel and powered by a 6-Volt pack of batteries. Which of the two light bulbs will shine the brightest? a. They will have the same brightness. b. The low-R bulb will shine more brightly. c. The high-R bulb will shine more brightly. d. There is no way to make such a prediction since bulb brightness is indepenent of bulb resistance.
- 10. A battery, a switch, a capacitor, and a resistor are all connected in series around a single loop electrical circuit. One of the circuit elements changes voltage with time as shown below. Which one is it? Voltage A. The resistor Time B. The capacitor C. The battery D. Each circuit element shows the behavior expressed in the graph.Select the correct statements below: a. The current in a circuit can be measured by using an ammeter. b. The resistance of a resistor can be directly measured by using an ohmmeter. c. The potential difference between any two points in a circuit can be measured by using a voltmeter. d. An ideal ammeter has zero resistance. e. An ideal voltmeter has infinite resistance.Calculate the power in SI unit.