winglj
Full Member level 4
Hi, every one. I have a simple question about the power measurement of a circuit which is powered by battery. Can I just disconnect the positive wire from the battery to circuit, and use a current meter to read the current while the circuit is operation?
And should I measure the DC current or AC current? If the AC current is measured, can I use the formula P=0.5*V*I to calculate the power?
Thanks in advance
And should I measure the DC current or AC current? If the AC current is measured, can I use the formula P=0.5*V*I to calculate the power?
Thanks in advance