1) Which of the given statements is not true, regarding the electrical set-up for the verification of Ohm’s law: a) The voltmeter is connected in parallel with the known resistance b) The ammeter is connected in series circuit c) The rheostat can only increase the resistance in electric circuit d) The single key is used to switch on/off the electric circuit 2) In parallel combination of electrical appliances, total electrical power a) Increase b) Decrease c) Does not change d) Remain same 3) If length of a conductor and it’s radius is increased twice, how the resistance will change? a) Resistance will remain unchanged b) Resistance will become half c) Resistance increase twice d) Resistance will increase 4 times 4) There is wire of length I and cross section A. Which of the given have least resistance? a) Length halved, Area doubled b) Length tripled, Area doubled c) Length doubled, Area halved d) The original wire 5) The heat produced by passing an electric current through a fixed resistor is proportional to the square of: a) Magnitude of resistance of the resistor b) Temperature of the resistor c) Magnitude of current d) Time for which current is passed

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