MCQ Questions for Class 12 Physics Chapter 7 Alternating Current Part-2 with Answers 

Alternating Current Part-2 Class 12 Physics MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 12 Physics Chapter 7 Alternating Current Part-2 with Answers Pdf free download. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. We have Provided Alternating Current Part-2 Class 12 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 12 Physics Chapter 7 Quiz

Class 12 Physics Chapter 7 MCQ Online Test

You can refer to NCERT Solutions for Class 12 Physics Chapter 7 Alternating Current Part-2 to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Alternating Current Part-2 Class 12 Physics MCQ online test

Q1.	In the series L-C-R circuit, the voltmeter and ammeter readings are:
	A.V = 100 Volts, I = 2A
	B.V = 100 Volts, I = 5A
	C.V = 1000 Volts, I = 2A
	D.V = 300 Volts, I = 1A

Ans: V = 100 Volts, I = 2A

Q2.	The band width of a series resonant circuit is :
	A.f0/Q0
	B.\(\frac{R}{2πL}\)
	C.\(\frac{R}{4πL}\)
	D.4R

Ans: f₀/Q₀

Q3.	A rejector circuit is:
	A.series resonant circuit
	B.parallel resonant circuit
	C.LCR circuit
	D.None of these

Ans: parallel resonant circuit

Q4.	The inductive reactance of an inductor coil of \(\frac{1}{π}\) H at 50 Hz is:
	A.\(\frac{50}{π}\) Ω
	B.\(\frac{π}{50}\) Ω
	C.100 Ω
	D.50 Ω

Ans: 100 Ω

Q5.	In pure inductive circuit current
	A.lags behind emf by π/2
	B.leads the emf by π/2
	C.lags behind emf by π
	D.leads the emf by π

Ans: lags behind emf by π/2

Q6.	The current through an inductor of 1H is given by I = 3t sin t. The voltage across the inductor of 1 H is:
	A.3 sin t + 3 cos t
	B.3 sin t + 3t cos t
	C.3 cos t + t sin t
	D.3t cos t + sin t

Ans: 3 sin t + 3t cos t

Q7.	Two coils X and Y are connected in series across a 240 V, 50 Hz supply. The resistance of X is 5Ω and inductance of Y is 0.02 H. The power consumed is 3 kW and the power factor is 0.75. The impedance of the circuit is:
	A.0.144 Ω
	B.1.44 Ω
	C.14.4 Ω
	D.144 Ω

Ans: 14.4 Ω

Q8.	In the above problem, the value of the resistance of the coil Y is:
	A.0.58 Ω
	B.5.8 Ω
	C.1.16 Ω
	D.11.6 Ω

Ans: 5.8 Ω

Q9.	An electric circuit containing capacitor only suffers:
	A.equal resistance for A.C. and D.C.
	B.Resistance of A.C. > Resistance of D.C.
	C.Resistance for A.C. < Resistance of D.C.
	D.offers infinite resistance for D.C.

Ans: offers infinite resistance for D.C.

Q10.	The average power dissipation in pure inductance or capacitance is:
	A.\(\frac{1}{2}\) LI²
	B.\(\frac{3}{2}\) CV²
	C.either (a) or (b)
	D.zero

Ans: zero

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

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NCERT SOLUTIONS FOR CLASS 12