Question

An electric geyser consumes 2.2 ‘ units ‘ of electrical energy per hour of its use. It is

designed to work on the mains voltage of 220V.

(i) What is the ‘power rating of this device ?

(ii) Calculate the current flowing through this device when it is connected across the

‘mains’?

(iii) Find the ‘resistance’ of this device?

(iv) Does the resistance of this device remain constant during its operation/working?

(v) Find the cost of energy consumed if each unit cost Rs 6.00 .​

Answer 1

Answer:

An electric geyser consumes 2.2 ‘ units ‘ of electrical energy per hour of its use. It is

designed to work on the mains voltage of 220V.

(i) What is the ‘power rating of this device ?

(ii) Calculate the current flowing through this device when it is connected across the

‘mains’?

(iii) Find the ‘resistance’ of this device?

(iv) Does the resistance of this device remain constant during its operation/working?

(v) Find the cost of energy consumed if each unit cost Rs 6.00 .