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- Question
When the south poles of two bar magnets are brought close together, there will be a force of attraction.
Options- A. True
- B. False
- Correct Answer
- False
- 1. The unit of magnetic flux is the weber.
Options- A. True
- B. False Discuss
- 2. The ability of a material to maintain a magnetized state (without the presence of a magnetizing force) is called hysteresis.
Options- A. True
- B. False Discuss
- 3. The ___ is the unit for resistance, reactance, and impedance.
Options- A. farad
- B. henry
- C. ohm
- D. watt Discuss
- 4. The number 5200 ×10?2 equals ___ × 101.
Options- A. 0.52
- B. 5.2
- C. 52
- D. 520 Discuss
- 5. 7450 × 10?5 amperes equals 74.5 ___.
Options- A. A
- B. mA
- C. µA
- D. nA Discuss
- 6. The operation of an electrical generator relies on electromagnetic induction.
Options- A. True
- B. False Discuss
- 7. Magnetic flux flows from the north pole to the south pole within the magnet.
Options- A. True
- B. False Discuss
- 8. A voltage is induced across a conductor if it remains absolutely stationary within a magnetic field.
Options- A. True
- B. False Discuss
- 9. The induced emf of a conductor cutting flux lines is directly proportional to the rate of cutting.
Options- A. True
- B. False Discuss
- 10. The magnetic field, current through the Hall element, and Hall voltage are all at right angles to each other.
Options- A. True
- B. False Discuss
Magnetism and Electromagnetism problems
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Correct Answer: True
Correct Answer: False
Correct Answer: ohm
Correct Answer: 5.2
Correct Answer: mA
Correct Answer: True
Correct Answer: False
Correct Answer: False
Correct Answer: True
Correct Answer: True
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