MCQ Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Part-1 with Answers

Electrostatic Potential and Capacitance Part-1 Class 12 Physics MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance 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 Electrostatic Potential and Capacitance Part-1 Class 12 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 12 Physics Chapter 2 Quiz

Class 12 Physics Chapter 2 MCQ Online Test

You can refer to NCERT Solutions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Part-1 to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Electrostatic Potential and Capacitance Part-1 Class 12 Physics MCQ online test

Q1.	The dimensions of fall of potential per unit distance are given by:
	A.[MLT^-3 A^-1]
	B.[ML²T^-2A^-1]
	C.[ML²T^-2A^-3]
	D.[MLT^-2A^-2]

Ans: [ML²T^-2A^-3]

Q2.	Which of the following is blocked by a capacitor ?
	A.A.C.
	B.D.C.
	C.Both A.C. and D.C.
	D.Neither A.C. nor D. C

Ans: D.C.

Q3.	Two copper spheres of the same radius, one solid and the other hollow, are charged to the same potential. Which will have more charge?
	A.Solid sphere
	B.Hollow sphere
	C.Both will have an equal charge
	D.None of these

Ans: Both will have an equal charge

Q4.	The capacitance of a capacitor will decrease if we introduce a slab of:
	A.copper
	B.aluminium
	C.zinc
	D.None of these

Ans: None of these

Q5.	Two capacitors of capacitance 6 µF and 4 µF are put in series across a 120 V battery. What is the potential difference across the 4 µF capacitor ?
	A.72 V
	B.60 V
	C.48 V
	D.zero

Ans: 72 V

Q6.	In which of the following forms is the energy stored in a capacitor?
	A.Charge
	B.Potential
	C.Capacitance
	D.Electric field

Ans: Electric field

Q7.	Two conducting spheres of radii r₁ and r₂ are equally charged. The ratio of their potential is
	A.(r₁/r₂)²
	B.(r₁r₂)²
	C.(r₁/r₂)
	D.(r₂/r₁)

Ans: (r₁r₂)²

Q8.	Twenty seven drops of mercury are charged simultaneously to the same potential of 10 volts. What will be potential if all the charged drops are made to combine to form one large drop ?
	A.180 V
	B.90 V
	C.120 V
	D.45 V

Ans: 90 V

Q9.	The P.E. of an electric dipole is maximum when it makes an angle θ with electric field. The value of θ is :
	A.\(\frac{π}{2}\)
	B.π
	C.zero
	D.\(\frac{3π}{2}\)

Ans: π

Q10.	The amount of work required to increase the distance between -6µC and 4µC from 6 cm to 18 cm will be :
	A.1.8 J
	B.2.4 J
	C.1.8 µJ
	D.2.4 µJ

Ans: 2.4 J

Q11.	An electron initially at rest is accelerated through a potential difference of one volt. The energy gained by electron is:
	A.1 J
	B.1.6 × 10^-19 J
	C.10^-19 J
	D.None of these

Ans: 1.6 × 10^-19 J

Q12.	A bird sitting on a high power line:
	A.gets killed instantly
	B.gets a mild shock
	C.gets a fatal shock
	D.is not affected practically

Ans: is not affected practically

Q13.	Choose the SI unit of electric potential energy :
	A.Joule
	B.Coulomb
	C.Netwon per coulomb
	D.Erg

Ans: Joule

Q14.	The capacitance of earth, viewed as a spherical conductor of radius 6408 km is:
	A.1420 µF
	B.712 µF
	C.680 µF
	D.540 µF

Ans: 712 µF

Q15.	A capacitor is connected to a cell of emf E having some internal resistance r, the potential across the:
	A.cell is < E
	B.cell is E
	C.cell is > E
	D.capacitor is E

Ans: cell is E

Q16.	If a +ve charge is moved from low to high potential region, the electric potential energy:
	A.decreases
	B.increases
	C.remain the same
	D.may increase or decrease

Ans: increases

Q17.	A capacitor is connected across a battery and the plate separation of capacitor is increased without removing the battery, then:
	A.capacitance will increase
	B.charge stored will increase
	C.energy stored will decrease
	D.potential difference will increase

Ans: energy stored will decrease

Q18.	Two capacitors of 3 µF and 6 µF are connected in series with a battery of P.d. 12 V. The P.d. across 3µF and 6µF capacitors respectively will be :
	A.8 V, 4 V
	B.6 V, 6 V
	C.4 V, 8 V
	D.9 V, 3 V

Ans: 8 V, 4 V

Q19.	An electric charge of 425 f µC is removed from a fully charged capacitor of capacitance 8.5µF. Its potential will be lowered by:
	A.75 V
	B.100 V
	C.85 V
	D.50 V

Ans: 100 V

Q20.	A dielectric is placed in between the two parallel plates of a capacitor as shown in the figure. The dielectric constant of the dielectric being K. If the initial capacity is C, then the new capacity will be:
	A.(K + l).C
	B.K.C
	C.\(\frac{(K+1)}{2}\) C
	D.(k – l) C