- #1
kloong
- 36
- 0
the moving iron voltmeter has resistance of 5k ohm at 15c when it reads correcectly when connected to a supply of 200V.
and the copper coil's temperature coefficient at 15c is 0.004ohm/c.
so what's the percentage error in the reading when it's 50c?
and the copper coil's temperature coefficient at 15c is 0.004ohm/c.
so what's the percentage error in the reading when it's 50c?