A series combination of resistances is used to increase the resistance of a circuit.

Give scientific reasons: Parallel combination of resistances decreases the effective resistance of the circuit.

Solve the cross-word. Across 2. A combination of resistances that reduces effective resistance of the circuit. 4. It is the rate of flow of charge. 6. Substance which does not allow current to flow through it. Down: 1. Combination of resistances in. which current flowing through all resistances is same. 3. Ratio of potential difference and current. 5. It is used to protect domestic appliances.

Find the total resistance in the circuit.

State whether the following statements are true or false. Correct the false statements: Resistance in series arrangement is used to decrease resistance of circuit

Fill in the blanks. In…………. Combination of resistance the current is the same in every part to the circuit.

A set of three coils having resistances 10 Omega , 12 Omega and 15 Omega are connected in parallel. This combination is connected in series with series combination of three coils of the same resistances. Calculate the total resistance and current through the circuit, if a battery of emf 4.1 Volt is used for drawing current.

The series combination of galvanometer and high resistance is called as

On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1k Omega . How much was the resistance on the left slot before interchanging the resistances ?