1
GATE ECE 2011
+1
-0.3
In the circuit shown below, the Norton equivalent current in amperes with respect to terminals P and Q is
A
6.4 - j 4.8
B
6.56 - j 7.87
C
10 + j 0
D
16 + j 0
2
GATE ECE 2009
+1
-0.3

A fully charged mobile phone with a 12 V battery is good for a 10 minute talk-time. Assume that, during the talk-time, the battery delivers a constant current of 2 A and its voltage drops linearly from 12 V to 10 V as shown in the figure. How much energy does the battery deliver during this talk-time?

A
220 J
B
12 kJ
C
13.2 kJ
D
14.4 kJ
3
GATE ECE 2007
+1
-0.3
An independent voltage source in series with an impedance Zs=Rs+jXs delivers a maximum average power to a load impedance ZL when
A
ZL=Rs+jXs
B
ZL=Rs
C
ZL=jXs
D
ZL=Rs-jXs
4
GATE ECE 2005
+1
-0.3
The maximum power that can be transferred to the load resistor RL from the voltage source in figure is
A
1 W
B
10 W
C
0.25 W
D
0.5 W
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