1. Ohm’s law states the relationship between power and voltage. 2. MCB is used to protect house hold electrical appliances.

Question

State Whether the following statement are true or false : If false correct the statement.

1. Ohm’s law states the relationship between power and voltage. 

2. MCB is used to protect house hold electrical appliances. 

3. The SI unit for electric current is the coulomb. 

4. One unit of electrical energy consumed is equal to 1000 kilowatt hour.

5. The effective resistance of three resistors connected in series is lesser than the lowest of the individual resistances.

Answer 1

1. False – Ohm’s law states that the relationship between current and voltage. 

2. True 

3. False – The SI unit for electric current is ampere. 

4. False – One unit of electrical energy consumed is equal to 1 kilowatt hour. 

5. False – The effective resistance of three resistors connected in series is greater than the highest of the “individual resistance.