In current electricity, a positive charge refers to,

(a)

presence of electron

(b)

presence of proton

(c)

absence of electron

(d)

absence of proton

Electroplating is an example for

(a)

heating effect

(b)

chemical effect

(c)

flowing effect

(d)

magnetic effect

Resistance of a wire depends on

(a)

temperature

(b)

geometry

(c)

nature of material

(d)

all the above

In India the frequency of alternating current is

(a)

220 Hz

(b)

50 Hz

(c)

5 Hz

(d)

100 Hz

Electrons move from__________ potential to __________ potential

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higher, lower

The domestic electricity in India is an ac with a frequency of___________Hz

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50

Trip switch is a______________safety device

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electro-mechanical

The anode in electrolyte is negative

(a) True

(b) False

Current can produce magnetic field.

(a) True

(b) False

Electric fuse works on Joule heating principle

(a) True

(b) False

What are electric lines of force?

Define electric field.

Draw a circuit with a 2\(\Omega\) and 5\(\Omega\) resistors in series. Connect another 3\(\Omega\) resistor parallel to the above connection.

How are the home appliances connected in general, in series or parallel. Give reasons.