Why does one experiences fatal shock when one accidentally touches a live wire of 220 V supply?

Why does the paper strip open up when touched with a charged rod?

In India domestic power supply is at 220 V, 50Hz. While in USA it is 110 V, 50 Hz. Given one advantage and one disadvantage of 220 V supply over 110 V supply.

Does one part of a wire carrying curent exert a force on another part of the same wire?

A wire when connected to 220 V mains supply has power dissipation P_1 . Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is P_2. Then P_2: P_1 is

How much current is drawn by the priary of a transformer connectede to 220V supply, when it delivers power to a 110 V and 550 W refrigerator?

A coil has an inductance 0.7 H and is joined in series with a resistance of 220 ohm. Find the wattles component of the current in the circuit, when an alternating e.m.f. of 220 V at a frequency of 50 hz is supplied to it.

Several electric bulbs designed to be used on a 220 V electric supply line are rated 10 W. How many lamps can be connected in parallel with each other across the two wires 220 V line if the maximum allowable current is 5A?