Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 10 Ω 11 Ω 9 Ω 12.1 Ω 10 Ω 11 Ω 9 Ω 12.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are used As heating elements As current stabilizers For inductive circuits To suppress surges As heating elements As current stabilizers For inductive circuits To suppress surges ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Zero Positive Negative None of the listed here Zero Positive Negative None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is 5 kWh 3.2 kWh 2 kWh 6 kWh 5 kWh 3.2 kWh 2 kWh 6 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Dc circuits Small resistors High currents Semi-conductors Dc circuits Small resistors High currents Semi-conductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of human body is about 10 ohm 1000 ohm 200 ohm 25 ohm 10 ohm 1000 ohm 200 ohm 25 ohm ANSWER DOWNLOAD EXAMIANS APP
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