SSC JE Electrical Engineering 2013 Paper

Question : 132 of 200

Marks: +1, -0

A wattmeter is marked 15 A/30 A, 300 V/600 V and its scale is marked up to 4500 watts. When the meter is connected for 30 A, 600 V, the point indicated 2000 watts. The actual power in the circuit is

2000 watts
4000 watts
6000 watts
8000 watts

Validate

Solution:

Power consumed by watt meter =

C_T

ratio ×

P_T

ratio × Actual power)

200=15/20×300/600×P

⇒P=8000\watt

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