Everyday Science · Physics in Everyday Life · page 27 of 62
Electricity & Magnetism MCQs with Answers
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- 261.
A simple device which prevents the direction of current from changing is ?
- 262.
To measure the current in a circuit, an ammeter is always connected in?
- 263.
In which component does the resistance decrease with a rise in temperature?
- 264.
What is the unit of electricity commonly used for billing purposes?
- 265.
A 20-F capacitor is charged to 200V. Its stored energy is _?
- 266.
Which of the following devices is bidirectional but without a gate?
- 267.
A wire carries a current of 2 A. What is the amount of charge that flows through it in 5 seconds?
- 268.
The property of a body to oppose the flow of electric charge through it is called electric _?
- 269.
Elements which can be magnetized are called as _.
- 270.
If the capacitance C and resistance R of an RC circuit are given, what is the time constant (τ) of the circuit?