2)The coil of a 300V moving iron voltmeter has a resistance of 500Ω and an
inductance of 0.8H. The instrument reads correctly at 50 Hz AC supply and
takes 100-mA at full scale deflection. What is the percentage error in the
instrument reading when it is connected to 200VDC supply?
3)A 250V moving-iron voltmeter takes a current of 0.1A when it is
connected to a 250VDC supply. The coil has an inductance of 0.5H. Determine
the error in the reading when the meter is connected to a 250V, 50Hz AC supply,
assuming that the voltmeter reads correctly at DC supply.
hi.. i am new member i don know is it correct to post it here if is wrong pls tell me.. thx alot... ok.. up there is the questions.. i ady have the solution i will upload it pls kindly try to see for me... y this two is almost the similiar question but question 2 is using V,voltage to find while question 3 is using I, current to find.. thx for the help...
inductance of 0.8H. The instrument reads correctly at 50 Hz AC supply and
takes 100-mA at full scale deflection. What is the percentage error in the
instrument reading when it is connected to 200VDC supply?
3)A 250V moving-iron voltmeter takes a current of 0.1A when it is
connected to a 250VDC supply. The coil has an inductance of 0.5H. Determine
the error in the reading when the meter is connected to a 250V, 50Hz AC supply,
assuming that the voltmeter reads correctly at DC supply.
hi.. i am new member i don know is it correct to post it here if is wrong pls tell me.. thx alot... ok.. up there is the questions.. i ady have the solution i will upload it pls kindly try to see for me... y this two is almost the similiar question but question 2 is using V,voltage to find while question 3 is using I, current to find.. thx for the help...