According to Fraraday's Law, the magnitude of the induced emg, hence induced current, is directly proportional to the rate of change of...

When the current flows through the solenoid, the U-shaped iron rod will become magnetised easily and strongly. When the current is cut...

When a current flows through a wire, magnetic field is produced around the wire. This magnetic field can be detected using a compass....

It fine to use a multiplug as it brings convenience. The problem arises when too many high power appliances are connected and on at the...

Changing the pin will not change the voltage required by the appliance.

The wire used here is not the typical copper wire. It is nichrome wire which has much higher resistivity compared to copper. Hence, for...

A partially inflated balloon is placed inside a sealed container as air is pumped out of the by syringe. As the pressure of the container...

When the pump is switched on and the air in the jar is gradually removed, the pressure in the jar decreases. There will be fewer air...

At sea level (where most of us are), the standard atmospheric pressure is about 101325 Pa. The boiling point of water is at  100 oC which...

We have learned that silver smooth reflective surface is a poor absorber , poor emitter or a good reflector of infra-red radiation. How...

The 3 states of matter –  solid, liquid and gas. In general, when a body is heated, it expands and volume increases. The mass remains the...