Which type of wattmeter cannot be used for both A.C and D.C?
Which type of wattmeter cannot be used for both A.C and D.C?
Right Answer is:
None of the above
SOLUTION
Induction type wattmeter is used for the A.C measurement only whereas the Dynamometer type wattmeter is used for DC only.
Electrostatic type instrument does not come in the category of the wattmeter and it is used for voltage measurement.