Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is Zero Positive Negative About 2 ohms per degree Zero Positive Negative About 2 ohms per degree ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ampere-hour is the unit of Energy Quantity of electricity Strength of current Power Energy Quantity of electricity Strength of current Power ANSWER DOWNLOAD EXAMIANS APP
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 12.1 Ω 11 Ω 10 Ω 9 Ω 12.1 Ω 11 Ω 10 Ω 9 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Silver Copper Constantan Carbon Silver Copper Constantan Carbon ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current is a Vector quantity Scalar quantity Number only Sometimes scalar and sometimes vector Vector quantity Scalar quantity Number only Sometimes scalar and sometimes vector ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude and direction of current remains constant Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude and direction of current remains constant Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current changes with time ANSWER DOWNLOAD EXAMIANS APP
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