Identify the correct statement (s)

(i) Primary cell is capable of giving low as well as high current whereas secondary cells provide a weak current only.

(ii) The internal resistance of primary cells is low and that of secondary cells is high.

1. (i)
2. (ii)
3. both (i) and (ii)
4. none of the above

A battery is correctly represented by :

Rheostat is used in a circuit to provide :

1. fixed current
2. fixed voltage
3. fixed resistance
4. variable resistance

An instrument used to measure the magnitude of current flowing in a circuit is :

1. voltmeter
2. galvanometer
3. ammeter
4. rheostat