Current Electricity — Physics STD 10 — Question

Mechanical advantage of single movable pulley is ________ [one/two/three].

Kilowatt is the unit of ________ and kWh is the unit of.

Angle of deviation is the angle which the ________ Ray makes with the direction of ________ ray.

A fuse wire is made of an alloy of ………. and …..If the current in a circuit rises too high, the fuse wire ……….

Complete the following sentence :
when current flows in a wire, it creates ………..

Earth pin is ___________  [thicker/ longer] and___________ [longer/ thicker] than live and neutral pin.

Electromagnetic induction is induction of___________ [electric field/magnetic field] due to the presence of external ___________ [magnetic field/electric field].

Increase in velocity ratio would _________ [decrease/ increase/ not affect] the efficiency.

When a liquid is solidified, it many either expand or contract. As water freezes to form ice it ........... And .............. in volume by ............. per cent.