Ch. No. 4. THE ELECTRIC SPARK Q1. Choose the correct alternative and rewrite the following: 1. 1mA = ___________ A a. 10 3 A b. 10 – 3 A c. 10 6 A d. 10 – 6 A 2. To increase the effective resistance in a circuit, the resistors are connected in _________ a. Series b. Parallel c. Both ways d. None of these 3. 1 kilowatt hr = ____________ Joules. a. 4.6 x 10 6 Joule b. 3.6 x 10 6 Joule c. 30.6 x 10 6 Joule d. 3.6 x 10 5 Joule 4. If a P.D. of 12 V is applied across a 3Ω resistor, then the current passing through it is _______ a. 36A b. 4A c. 0.25A d. 15A Q2. State True or False. If false correct it. 1. The SI unit of charge is volt. False: The SI unit of charge is the coulomb and the SI unit of P.D. is Volt. 2. A voltmeter is always connected in parallel with the device. False: A voltmeter is always connected in series with the device. 3. Th
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