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Physics 914 MCQs [All-Courses]

Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

Choose the correct statement. In the case of AC circuit ohms law holds for_______________?

A Peak values of voltage and current

B Effective values of voltage and current

C Instantaneous values of voltage and current

D All of the above

Review Detailed Answer

Correct Answer: All of the above

When K.E energy of SHM is maximum its__________________?

A P.E is zero

B Acceleration is zero

C Restoring force is zero

D All P.E acceleration and restoring force are zero

Review Detailed Answer

Correct Answer: All P.E acceleration and restoring force are zero

An inductive coil has a resistance of 100Ω. When an AC signal of frequency 1000Hz is fed to the coil the applied voltage leads the current by 45Ω. What is the inductance of the coil ?

A 10mH

B 12mH

C 16mH

D 20mH

Review Detailed Answer

Correct Answer: 16mH

Total distance travelled by a bob of the simple pendulum in one vibration is equal to________________?

A Amplitude

B Square of the amplitude

C 2 x amplitude

D 4 x amplitude

Review Detailed Answer

Correct Answer: 4 x amplitude

An A.C series circuit containing 4Ω resistance and 3Ω inductive reactance. The impedance of the circuit is______________?

A 1Ω

B 5Ω

C 7Ω

D 7Ω

Review Detailed Answer

Correct Answer: 5Ω

Electrical resonance is observed in_______________?

A Radio

B Microwave oven

C Both in radio and microwave oven

D Neither in radio nor in a microwave oven

Review Detailed Answer

Correct Answer: Radio

At resonance the value of the power factor in an L-C-R series circuit is_______________?

A Zero

B 2

C 1

D Not definite

Review Detailed Answer

Correct Answer: 1

The natural frequency of simple pendulum depends upon_______________?

A It’s mass

B It’s length

C Square of its length

D The square root of its length

Review Detailed Answer

Correct Answer: The square root of its length

A choke is used as a resistance in_________________?

A DC circuit

B AC circuits

C Both AC and DC circuit

D Full wave rectifier circuit

Review Detailed Answer

Correct Answer: AC circuits

The sharpness of resonance is__________________?

A Directly proportional to the damping force

B Inversely proportional to the damping force

C Equal to the square of damping force

D Equal to the square of damping force

Review Detailed Answer

Correct Answer: Inversely proportional to the damping force

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Physics 914 MCQs [All-Courses]

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All Topics 914

Choose the correct statement. In the case of AC circuit ohms law holds for_______________?

When K.E energy of SHM is maximum its__________________?

An inductive coil has a resistance of 100Ω. When an AC signal of frequency 1000Hz is fed to the coil the applied voltage leads the current by 45Ω. What is the inductance of the coil ?

Total distance travelled by a bob of the simple pendulum in one vibration is equal to________________?

An A.C series circuit containing 4Ω resistance and 3Ω inductive reactance. The impedance of the circuit is______________?

Electrical resonance is observed in_______________?

At resonance the value of the power factor in an L-C-R series circuit is_______________?

The natural frequency of simple pendulum depends upon_______________?

A choke is used as a resistance in_________________?

The sharpness of resonance is__________________?