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Current Electricity

Current Electricity
Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across

Either Rl or Ri
None of them
Ri
Rl

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Current Electricity
At 0 K, germanium behaves as

An insulator
A conductor
A superconductor
A ferromagnetic substance

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Current Electricity
If the efficiency of a machine is to be high, what should be low?

kWh consumed
True component of power
Losses
Input power

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Current Electricity
Sparking occurs when a load is switched off because the circuit has high

Impedance
Resistance
Capacitance
Inductance

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Current Electricity
E. M. F. In a circuit

Maintains potential difference
Increases circuit resistance
Decrease circuit resistance
None of the listed here

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Current Electricity
A closed switch has a resistance of

Zero
About 500 ohms
Infinity
About 50 ohms

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