MCQ
In the following circuit, $5W$ resistor develops $45 \ J/s$ due to current flowing through it. The power developed per second across $12 W$ resistor is
- A$16 W$
- ✓$192 W$
- C$36 W$
- D$64 W$
✓
Answer
Correct option: B.
$192 W$
$192 W$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A solid floats in a liquid in a partially dipped position.
-
The solid exerts a force equal to its weight on the liquid.
-
The liquid exerts a force of buoyancy on the solid which is equal to the weight of the solid.
-
The weight of the displaced liquid equals the weight of the solid.
-
The weight of the dipped part of the solid is equal to the weight of the displaced liquid.
Assertion : Gauss theorem is not applicable in magnetism.
Reason : Mono magnetic pole does not exist.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
Reason : Mono magnetic pole does not exist.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
A p-n junction diode cannot be used:
A star moves away from earth at speed $0.8\ c$ while emitting light of frequency $6\times 10^{14} Hz$ What frequency will be observed on the earth $($in units of $10^{14}Hz) (c =$ speed of light$)$
→A sample contains $16\ gm$ of a radioactive material, the half life of which is two days. After $32$ days, the amount of radioactive material left in the sample is
→When a P - N junction is unbiased, the junction current at equilibrium is:
A spherical ball is dropped in a long column of a viscous liquid. The speed of the ball as a function of time may be best represented by the graph:
- A
- B
- C
- D
The capacitor of capacitance 4μF and 6 μF are connected in series. A potential difference of 500 volts applied to the outer plates of the two capacitor system. Then the charge on each capacitor is numerically(a) 6000 C(b) 1200 C(c) 1200 μC(d) 6000 μC
Capacitance $($in $F)$ of a spherical conductor with radius $1m$ is
→In a diode AM-detector, the output circuit consist of R = 1kW and C = 10 pF. A carrier signal of 100 kHz is to be detected. Is it good (a) Yes (b) No(c) Information is not sufficient(d) None of these