Hall Effect Quiz with Answers PDF Download – Test 13

MCQ 61: Hall voltage is directly proportional to:

1. current
2. electric field
3. magnetic flux density
4. all of above

MCQ 62: High speed electrons from particle detectors are used to determine:

1. arrangement of atoms in metals
2. diameter of atomic nuclei
3. inter atomic distance
4. circumference of atomic nuclei

MCQ 63: Mass of Earth when it's radius is 6400 km and gravitational field strength is 9.81 N kg^-1 is:

1. 6.0 × 10²⁴ kg
2. 5 × 10²³ kg
3. 40 × 10⁹ kg
4. 9 × 10²⁴ kg

MCQ 64: Speed of sound in water is 1500 ms^-1, depth of water when reflected sound waves are detected after 0.40 s is:

1. 700 m
2. 600 km
3. 600 m
4. 750 km

MCQ 65: Pair of forces that cause steering wheel of a car to rotate is called:

1. couple
2. friction
3. normal force
4. weight