JEE & NEETJEE Physics JEE Main Physics 100+ MCQ & Answer | Page-04 | JEE & NEET MCQ February 4, 2025 DSN MARATHI 31. Charged particle ‘q’ moving through a magnetic field with velocity V will have zero magnetic force when the angle is A. 0 B. 90 C. 180 D. Both a and b Answer Option : D 32. If a coil carrying current is placed in uniform magnetic field, then A. emf is produced B. Torque is produced C. Force is produced D. Torque and force is produced Answer Option : D 33. Good conductors have many loosely bound A. Atoms B. Protons C. Molecules D. Electrons Answer Option : D 34. Which among the following is not an insulator? A. Wool B. Plastic C. Silver D. Paper Answer Option : C 35. Which of the following is the most conductive element? A. Copper B. Iron C. Silicon D. Silver Answer Option : D 36. The energy gap is maximum in A. Conductors B. Semiconductors C. Insulators D. Superconductors Answer Option : C 37. The resistance of the conductor is directly proportional to A. Length B. Area of cross section C. Temperature D. resistivity Answer Option : A 38. A material that has zero resistance is called A. Insulator B. Conductor C. Superconductor D. Semiconductor Answer Option : C 39. What is the inverse of resistance called? A. Inductance B. Conductance C. Resistivity D. Permittivity Answer Option : B 40. With the increase in temperature the resistance of semiconductors A. Decreases B. Increases C. Remains constant D. Initially increases and then decreases Answer Option : A
31. Charged particle ‘q’ moving through a magnetic field with velocity V will have zero magnetic force when the angle is A. 0 B. 90 C. 180 D. Both a and b Answer Option : D
32. If a coil carrying current is placed in uniform magnetic field, then A. emf is produced B. Torque is produced C. Force is produced D. Torque and force is produced Answer Option : D
33. Good conductors have many loosely bound A. Atoms B. Protons C. Molecules D. Electrons Answer Option : D
34. Which among the following is not an insulator? A. Wool B. Plastic C. Silver D. Paper Answer Option : C
35. Which of the following is the most conductive element? A. Copper B. Iron C. Silicon D. Silver Answer Option : D
36. The energy gap is maximum in A. Conductors B. Semiconductors C. Insulators D. Superconductors Answer Option : C
37. The resistance of the conductor is directly proportional to A. Length B. Area of cross section C. Temperature D. resistivity Answer Option : A
38. A material that has zero resistance is called A. Insulator B. Conductor C. Superconductor D. Semiconductor Answer Option : C
39. What is the inverse of resistance called? A. Inductance B. Conductance C. Resistivity D. Permittivity Answer Option : B
40. With the increase in temperature the resistance of semiconductors A. Decreases B. Increases C. Remains constant D. Initially increases and then decreases Answer Option : A
