Current Electricity Resistance of a material always decreases if Temperature of material is increased None of these Number of free electrons available becomes more Temperature of material is decreased Temperature of material is increased None of these Number of free electrons available becomes more Temperature of material is decreased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Current density Resistance None of the listed here Resistivity Current density Resistance None of the listed here Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.6 ohm 1.0 ohm 0.4 ohm 0.8 ohm 0.6 ohm 1.0 ohm 0.4 ohm 0.8 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open There will be heavy current in the main line All three bulbs will light The other two bulbs will light Rest of the two bulbs will not light There will be heavy current in the main line All three bulbs will light The other two bulbs will light Rest of the two bulbs will not light ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Copper Carbon Constantan Silver Copper Carbon Constantan Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity It becomes more difficult to remove First electron from the orbit Second electron from the orbit Third electron from the orbit Any electron from the orbit First electron from the orbit Second electron from the orbit Third electron from the orbit Any electron from the orbit ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS