Question

Assume that a resistor is connected between the 150 V terminal and the common terminal. The voltmeter is then connected to an unknown voltage using the common terminal and the 300 V terminal. The voltmeter reads 288 V.What is the unknown voltage

Answer 1

Answer:
`316.8V`

Step-by-step explanation:

given data:

metre moving current =
`0.96mA`

meters voltage =
`288V`

or
`0.96*300V = 288V`

Solution:

`v1 = (0.96mA*150)`

`= 144V`

`i1 = (144v)/(750)`

`= 0.192mA`

`i2 = imovement + i1`

`i2= 0.96mA+0.192mA`

`= 1.152mA`

`Vmeasured = 144V+(150)(1.152mA)`

`=316.8V`

the unknown voltage is 316.8V