| 1 |
Magnetic lines of force are. |
- A. Imaginary
- B. Real
- C. Perpendicular
- D. In phase with electric lines of force
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| 2 |
A voltmeter is always connected in |
- A. Parallel
- B. Series
- C. Perpendicular
- D. Straight line
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| 3 |
If an electron is prijected in a magnetic field with velocity V, it will experience a force |
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| 4 |
The acceleration of an electron of mass m and charge e, moving with uniform speed v at right angles to a magnetic field of flux density B, is given by |
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| 5 |
Cathode ray oscilloscope works by deflecting a beams |
- A. Neutrons
- B. Protons
- C. Electrons
- D. Positron
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| 6 |
The value of e/m is smallest for |
- A. Proton
- B. Electron
- C. Beta particle
- D. Positron
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| 7 |
A charged particle enters in a strong magnetic field its K.E. |
- A. Remain constant
- B. Increases
- C. Decreases
- D. Increases then decreases
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| 8 |
To convert a galvanometer into an ammeter, we connect with it a |
- A. Shunt resistance
- B. Low value parallel
- C. Low value by pass resistor
- D. All of above
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| 9 |
The Weber is unit of measure of: |
- A. Conductance
- B. Electric current
- C. Magnitic flux
- D. Electric flux
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| 10 |
A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is. |
- A. Speed
- B. Kinetic energy
- C. Path of motion
- D. angular velocity
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