MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Fields Part-1 with Answers

MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Fields Part-1 with Answers 

MCQ Questions for Class12 Physics Chapter 1 Electric Charges and Fields Part-1

Electric Charges and Fields Part-1 Class 12 Physics MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Fields Part-1 with Answers Pdf free download. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. We have Provided Electric Charges and Fields Part-1 Class 12 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 12 Physics Chapter 1 Quiz

Class 12 Physics Chapter 1 MCQ Online Test


You can refer to NCERT Solutions for Class 12 Physics Chapter 1 Electric Charges and Fields Part-1 to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Electric Charges and Fields Part-1 Class 12 Physics MCQ online test

Q1. Which one of the following is the unit of electric field?
A.Coulomb
B.Newton
C.Volt
D.N/C
Ans: N/C
Q2. Three charges + 3q + q and Q are placed on a st. line with equal separation. In order to maket the net force on q to be zero, the value of Q will be :
A.+3q
B.+2q
C.-3q
D.-4q
Ans: +3q
Q3. If an electric dipole is kept in a uniform electric field then resultant electric force on it is :
A.always zero
B.never zero
C.depend upon capacity of dipole
D.None
Ans: always zero
Q4. The number of electron-taken out from a body to produce 1 coulomb of charge will be :
A.6.25 × 1018
B.625 × 1018
C.6.023 × 1023
D.None
Ans: 6.25 × 1018
Q5. The work done in rotating an electric dipole in an electric field:
A.W = ME (1 – cos θ)
B.W = ME tan θ
C.W = ME sec θ
D.None
Ans: W = ME (1 – cos θ)
Q6. If sphere of bad conductor is given charge then it is distributed on:
A.surface
B.inside the surface
C.only inside the surface
D.None
Ans: None
Q7. Electric field in a cavity of metal:
A.depends upon the surroundings
B.depends upon the size of cavity
C.is always zero
D.is not necessarily zero
Ans: is not necessarily zero
Q8. The dielectric constant of a metal is:
A.0
B.1
C.
D.-1
Ans:
Q9. 1 coulomb is equal to:
A.3 × 109 e.s.u.
B.\(\frac{1}{3}\) × 109 e.s.u.
C.3 × 1010 e.s.u.
D.\(\frac{1}{3}\) × 1010 e.s.u.
Ans: 3 × 109 e.s.u.
Q10. Each of the two point charges are doubled and their distance is halved. Force of interaction becomes p times, w here p is :
A.1
B.4
C.\(\frac{1}{16}\)
D.16
Ans: 16
Q11. Coulomb’s law in vector form can be written as
\(\vec{F} \) = (\(\frac{1}{4πε_n}\)) (\(\frac{q_1q_2}{r^2}\))\(\vec{r} \)
where ε0 is the permitivity of free space. The SI units of ε0 will be:
A.N-1m-2C-2
B.Nm-2C2
C.N-1m-2C9.
D.Nm-2C2
Ans: N-1m-2C9
Q12. The dimensional representation of cu will be :
A.[MLT4 A2]
B.[M-1L-3T4A2]
C.[ML-2T ]
D.None of these
Ans: [M-1L-3T4A2]
Q13. When placed in a uniform field, a dipole experiences:
A.a net force
B.a torque
C.both a net force and torque
D.neither a net force nor a torque
Ans: a torque
Q14. A parrot comes and sits on a bare high power line. It will:
A.experience a mild shock ‘
B.experience a strong shock.
C.get killed instantaneously
D.not be affected practically
Ans: not be affected practically
Q15. The SI units of electric dipole moment are:
A.C
B.Cm-1
C.Cm
D.Nm-1
Ans: Cm
Q16. If two conducting sphere are connected after charging separately then:
A.Electrostatic energy sphere energy will remain conserved
B.Electrostatic energy charges remains conserved
C.Electrostatic energy energy and charge remains conserved
D.None
Ans: Electrostatic energy charges remains conserved
Q17. A soap bubble is given a negative charge, then its radius:
A.increases
B.decreases
C.remains unchanged
D.may increase or decrease
Ans: increases
Q18. In non-uniform electric field, electric dipole experiences:
A.torque only
B.torque as well as net force
C.force only
D.None of these
Ans: torque as well as net force
Q19. An electron is sent in an electric field of magnitude 9.1 × 106NC-1. The acceleration produced in it is :
A.1.6 ms-2
B.1.6 × 1018ms-2
C.3.2 × 1018ms-2
D.0.8 × 1018 ms-2
Ans: 1.6 × 1018ms-2
Q20. A semicircular arc of radius r is charged uniformly and the charge per unit length is λ. The electric field at the centre is:
A.\(\frac{λ}{2λε_0r^2}\)
B.\(\frac{λ}{4πε_0r}\)
C.\(\frac{λ^2}{2πε_0r}\)
D.\(\frac{λ}{2πε_0r}\)
Ans: \(\frac{λ}{4πε_0r}\)

MCQ Questions for Class 12 Physics


    MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Fields Part-1
    MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Fields Part-2
    MCQ Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Part-1
    MCQ Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Part-2
    MCQ Questions for Class 12 Physics Chapter 3 Current Electricity Part-1
    MCQ Questions for Class 12 Physics Chapter 3 Current Electricity Part-2
    MCQ Questions for Class 12 Physics Chapter 3 Current Electricity Part-3
    MCQ Questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism Part-1
    MCQ Questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism Part-2
    MCQ Questions for Class 12 Physics Chapter 5 Magnetism and Matter Part-1
    MCQ Questions for Class 12 Physics Chapter 5 Magnetism and Matter Part-2
    MCQ Questions for Class 12 Physics Chapter 6 Electromagnetic Induction Part-1
    MCQ Questions for Class 12 Physics Chapter 6 Electromagnetic Induction Part-2
    MCQ Questions for Class 12 Physics Chapter 7 Alternating Current Part-1
    MCQ Questions for Class 12 Physics Chapter 7 Alternating Current Part-2
    MCQ Questions for Class 12 Physics Chapter 8 Electromagnetic Waves Part-1
    MCQ Questions for Class 12 Physics Chapter 8 Electromagnetic Waves Part-2
    MCQ Questions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Part-1
    MCQ Questions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Part-2
    MCQ Questions for Class 12 Physics Chapter 10 Wave Optics Part-1
    MCQ Questions for Class 12 Physics Chapter 10 Wave Optics Part-2
    MCQ Questions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Part-1
    MCQ Questions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Part-2
    MCQ Questions for Class 12 Physics Chapter 12 Atoms
    MCQ Questions for Class 12 Physics Chapter 13 Nuclei Part-1
    MCQ Questions for Class 12 Physics Chapter 13 Nuclei Part-2
    MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits Part-1
    MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits Part-2
    MCQ Questions for Class 12 Physics Chapter 15 Communication Systems Part-1
    MCQ Questions for Class 12 Physics Chapter 15 Communication Systems Part-2

NCERT SOLUTIONS FOR CLASS 12

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