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
Answers
Answered by
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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