Question

point
2. The potential difference
across the terminals of a
resistor of 5 ohm, having 2000
C charge flowing in 200
seconds is
O 45 V
O 50 V
O 100 V
O 75V
​

Answer 1

Answer:

is ϕ ahead of i

because i and R is in phase and i.e., −Z and ε are in phase as ε=ε

0

sinwt

from diagram

i=

−Z

ε

0

sin(ωt−ϕ)

where, ϕ=tan

−1

R

X

L

b) i=1.0A (given)

V

R

=160V=iR⇒R=

1

160

=160

V

L

=120V=iX

L

⇒X

L

=

1

120

=120

V

net

=

V

R

2

+V

L

2

=

(160)

2

+(120)

2

=

25600+14400

=200 : effective value of apphed voltage

Z=

R

2

+X

L

2

=

(160)

2

+(120)

2

=200 : Impedence

Explanation:

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