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[2] Which of the following is a polarized capacitor?

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[3] In a 117Vrms utility circuit, the positive peak voltage is approximately

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[4] If a capacitor has a negative temperature coefficient then

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[9] A triangular wave exhibits

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The colour bands on a carbon composition resistor occur in the

sequence: yellow, violet, yellow and silver. Its resistance is

(a) 470 KΩ± 47 KΩ

(b) 470 KΩ± 23.5 %

(c) 47 KΩ± 10 %

(d) 47 KΩ± 5 %

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[11] If 120°C of charge passes through an electric conductor in 60 sec, the current in the conductor is

(a) 0.5A

(b) 2A

(c) 3.33mA

(d) 0.3mA

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[12] The energy required to move 120 coulomb through 3V is

(a) 25mJ

(b) 360J

(c) 40J

(d) 2.78mJ

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[13] The current carrying capacity of a 1W, 4MΩ resistor used in radio receiver is

(a) 0.5kA

(b) 2kA

(c) 2mA

(d) 0.5mA

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[14]

A capacitor is charged by a constant current of 2mA and results in a

voltage increase of 12V in a 10 sec interval. The value of capacitance

is

(a) 0.75mF

(b) 1.33mF

(c) 0.6mF

(d) 1.67mF

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[15] Three phase ac supply

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