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The instantaneous potential difference b...

The instantaneous potential difference between points.


A. `8 sin (50 pi t+37 (pi)/180)`
B. `8 sin(50 pit-37(pi)/180)`
C. `10 sin(50pit)`
D. `10 cos(50 pit)`

A

`8 sin (50 pi t+37 (pi)/180)`

B

`8 sin(50 pit-37(pi)/180)`

C

`10 sin(50pit)`

D

`10 cos(50 pit)`

Text Solution

Verified by Experts

The correct Answer is:
B
Impedence z=`sqrt((8-2)^(2)+(8)^(2)) =10 Omega`
current lags voltage by `37^(@)` , then
`i=10/10 sin (50 pi t-37^(@))`
`V_(AB)=ixxR=8 sin (50 pi t-37^(@))`
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