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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.

How much heat does a 40 W bulb generates in one hour ?

A 144000J

B 144J

C 1.44J

D 14J

Review Detailed Answer

Correct Answer: 144000J

One kilowatt hour is the amount of energy delivered during _______________?

A one second

B one day

C one minute

D one hour

Review Detailed Answer

Correct Answer: one hour

When same current passes for same time through a thick and thin wire_________________?

A more heat is produced in thick wire

B more heat is produced in thin wire

C no heat is produced in wire

D less heat is produced in thick wire

Review Detailed Answer

Correct Answer: more heat is produced in thin wire

A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part _________________?

A remains the same

B is doubled

C is halved

D becomes zero

Review Detailed Answer

Correct Answer: remains the same

Resistance of a conductor depends upon_________________?

A nature of conductor

B dimension of conductor

C physical state of the conductor

D all of above

Review Detailed Answer

Correct Answer: all of above

All electrical appliances are connected in parallel to each other between the main line and neutral wire to get ______________________?

A same current

B same current and potential difference

C different current but same potential difference

D different current and potential differences

Review Detailed Answer

Correct Answer: different current but same potential difference

Why should a resistance be introduced in a circuit in series deliberately ?

A to increase current

B to decrease current

C to control current

D just to give a good look to circuit

Review Detailed Answer

Correct Answer: to decrease current

If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________?

A 3600C

B 7200C

C 1C

D 2C

Review Detailed Answer

Correct Answer: 3600C

Which one of the following materials is useful for making bulb filaments ?

A constantan

B nichrome

C copper

D tungsten

Review Detailed Answer

Correct Answer: tungsten

In the following figure, the terminal potential is ___________________ ?

A zero

B 2V

C 12V

D 36V

Review Detailed Answer

Correct Answer: zero

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Physics 914 MCQs [All-Courses]

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All Topics 914

How much heat does a 40 W bulb generates in one hour ?

One kilowatt hour is the amount of energy delivered during _______________?

When same current passes for same time through a thick and thin wire_________________?

A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part _________________?

Resistance of a conductor depends upon_________________?

All electrical appliances are connected in parallel to each other between the main line and neutral wire to get ______________________?

Why should a resistance be introduced in a circuit in series deliberately ?

If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________?

Which one of the following materials is useful for making bulb filaments ?

In the following figure, the terminal potential is ___________________ ?