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1) Appetite is increased in Winters
Atmospheric temperature is reduced in winters but body temperature remains the same.So more heat is lost by the body.So we tend to eat more to make up for the loss
2)The bottom of the cooking utencils is kept black and rough
Black and rough surface absorb more heat from the burner and cooks the food rapidly
Uses of Good and bad absorbers of Thermal radiation Read More »
1) The main purpose of the capacitor is to store charge . If an instantanous strong current is to be flown in a circuit,the best way would be to connect the terminals of the circuit to a charge capacitor
2 A capacitor can store electric energy when disconnected from its charging circuit, so it can be used like a temporary battery. Capacitors are commonly used in electronic devices to maintain power supply while batteries are being changed. (This prevents loss of information in volatile memory.)
Capacitor : Uses, Unit and Formula Read More »
Force on a conductor in presence of an electric field
In presence of an electric field this surface charge will experience a force. If we consider a small area element of the surface of the conductor then force acting on area element is given by
Force on a conductor in presence of an electric field Read More »
