Electric circuits Questions
Physics 102 - Electricity and Magnetism Past Papers

Practice 29 past-paper questions for Electric circuits in Physics 102 - Electricity and Magnetism. Get solutions and exam preparation resources.

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1. The equivalent resistance for three parallel resistances of 10, 100 Ω, and 10000 Ω, will be

2. The equivalent resistance across points a-b of the circuit shown in figure-1 is

3. A resistive network is shown in figure-2. If the points A and B are short circuited due to an external fault, the equiva…

4. If current of 10 amp is flowing through 10 ohm resistor, the power being dissipated in that resistor is

5. Nine resistors of 18 € each are kept in parallel to each other. The equivalent resistance will be

6. Three resistances of 10Q each are connected in star. If the star connection is converted to delta, the equivalent value…

7. The voltage across the 1€ resistor in the circuit of figure-3 will be

8. What is the condition for maximum power to be transferred from a system, if R_L is load resistance and R_th is Thevenin…

9. In three phase system, three voltages have degree phase difference.

10. In star connection, what is the relation between Line Voltage (V_L) and Phase Voltage (V_P)?

11. Resistance offered by inductance (X_L) at a particular frequency (f) is

12. Average value of a sine wave V_m sin(wt) is

13. The resonating frequency for a LC circuit of L=5mH and capacitor of 0.1 pF is

14. The direction of the motion, in a conductor under action of a Magnetic Field and Electrical current is given by

15. Which of the following quantity in electrical circuit does Magnetic flux resembles?

16. A voltage of 220∠20° is supplying an impedance of 52∠30°. The current flowing in the circuit is

17. The working frequency of the voltage given by V=V_m sin(314*t+α) is

18. A current of 2A passes through a copper wire having a diameter of 2.05mm and length of 10m. If the resistivity of copper…

19. A 12V car battery has $4 \times 10^5 J$ of chemical energy that can be converted to electric energy. The battery can sup…

20. The power dissipated by a resistor with a resistance of $8\Omega$ and current of $3A$ flowing through it is

21. A junction or a point where two or more network elements intersect is called as _______

22. The time constant of an RC circuit with a $5k\Omega$ resistor and a $10 \mu F$ capacitor is

23. In Fig 1, ammeter and voltmeter readings will be

24. The maximum power is delivered to a circuit when source resistance is ______ load resistance.

25. The time period of a waveform having frequency of $60 Hz$ is

26. If the peak value of a sine wave is $100V$, the RMS value will be

27. A coil has a resistance of $40\Omega$, inductive reactance of $30\Omega$, then total impedance of coil is

28. The phase angle ($\theta$) in the coil with a resistance of $4\Omega$ and an inductive reactance of $3\Omega$ is

29. The resonant frequency of an LC circuit with an inductance of $2mH$ and a capacitance of $54 \mu F$

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