NCERT Exemplar Problems Class 12 Physics Chapter 6 Electromagnetic Induction Multiple Choice Questions (MCQs) Single Correct Answer Type Question 1. Solution: (c) Key concept: Magnetic flux is defined as the total number of magnetic lines of force passing normally through an area placed in a magnetic field and is equal to the magnetic flux linked…
Read more
NCERT Exemplar Problems Class 12 Physics Chapter 5 Magnetism and Matter Multiple Choice Questions (MCQs) Single Correct Answer Type Question 1. A toroid of n turns, mean radius R and cross-sectional radius a carries current I. It is placed on a horizontal table taken as xy-plane. Its magnetic moment m (a) is non-zero and points…
Read more
NCERT Exemplar Problems Class 12 Physics Chapter 4 Moving Charges and Magnetism Multiple Choice Questions Single Correct Answer Type Question 1. Two charged particles traverse identical helical paths in a completely oppo-site sense in a uniform magnetic field B = B0k (a) They have equal z-components of momenta (b) They must have equal charges (c)…
Read more
NCERT Exemplar Problems Class 12 Physics Chapter 3 Current Electricity Multiple Choice Questions (MCQs) Single Correct Answer Type Question 1. Consider a current carrying wire (current 7) in the shape of a circle. Note that as the current progresses along the wire, the direction of j (current density) changes in an exact manner, while the…
Read more
NCERT Exemplar Problems Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Multiple Choice Questions Single Correct Answer Type Question 1. A capacitor of 4 μF is connected as shown in the circuit. The internal resistance of the battery is 0.5 Ω. The amount of charge on the capacitor plates will be (a) 0 (b)…
Read more
NCERT Exemplar Problems Class 12 Physics Chapter 1 Electric Charges and Fields Multiple Choice Questions Single Correct Answer Type Question 1. In figure two positive charges q2 and q3 fixed along the y-axis, exert a net electric force in the +x-direction on a charge q1, fixed along the x-axis. If a positive charge Q is…
Read more