Electrostatic

51. If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be

1. 800 uC
2. 900 uC
3. 1200 uC
4. 1600 uC

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52. If a third equal and similar charge is placed between two equal and similar charges, then this third charge will

1. move out of the field of influence of the two charges
2. remain in stable equilibrium
3. not be in equilibrium
4. be in unstable equilibrium

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53. If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because

1. varying voltage produces the charging and dicharging currents
2. of high peak value
3. charging current can flow
4. discharge current can flow

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54. If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is

1. charged
2. short-circuited
3. lossy
4. satisfactory

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55. If the sheet of a bakelite is inserted between the plates of an air capacitor, the capacitance will

1. decrease
2. increase
3. remains unchanged
4. become zero

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56. If three 10 uF capacitors are connected in parallel, the net cararitance is

1. 20 uF
2. 30 uE
3. 40 uF
4. 50 uF

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57. If three 15 uF capacitors are connected in series, the net capacitance is

1. 5 uF
2. 30 uF
3. 45 uF
4. 50 uF

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58. In a capacitive circuit

1. a steady value of applied voltage causes discharge
2. an increase in applied voltage makes a capacitor charge
3. decrease in applied voltage makes a capacitor charge
4. none of the above

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59. In a capacitor the electric charge is stored in

1. metal plates
2. dielectric
3. both (a) and (6)
4. none of the above

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60. In a capacitor, the electric charge is stored in

1. metal plates
2. dielectric
3. dielectric as well as metal plates
4. none of the above

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