Question

The electrical energy produced in 30 days is 1.3×10¹³ J. The power of source is x MJ then x is

Comments

The answer is 5

Answer 1

Energy consumed in 1 day:- (1.3 × 10¹³ / 30) J 

Power of the source = (1.3 × 10¹³ / 30 × 24 × 3600 × 10⁶)

=(13 × 10¹² / 30 × 24 × 3600 × 10⁶)

= 13 ×10⁹ / 2592 × 10⁶ 

= 0.005 × 10³ 

= 5 MW

∴ P_source = 5 MW ... (1) 

But, P_source = X MW ... (2) {Given}

Equating (1) and (2) we get, 

x MW = 5 MW

∴ x = 5