Electricity

Electricity Worksheet-1

1. Electromagnets are used in :

(a) telephones

(b) radios

(c) both telephones and radios

(d) none of these

2. When electric current is passed through acidulated water, it splits into hydrogen and oxgen. This effect of electric current is called:

(a) chemical effect

(b) magnetic effect

(c) electromagnetic effect

(d) all of these

Electricity Worksheet-2

1. Which is not an application of electrolysis?

(a) Electroplating                         (b) Electrotyping

(c) Purification of metals           (d) Radio-telegraphy

2. During purification of a metal, the impure metal is connected to :

(a) cathode                                     (b) anode

(c) Anode or cathode                   (d) none of these

Electricity Worksheet-3

1. A voltameter consists of a glass vessel containing:

(a) a cathode and electrolyte

(b) a cathode and anode

(c) an anode and electrolyte

(d) a cathode, an anode and electrolyte

2. During electroplating the article to be electroplated is connected to the :

(a) cathode                                     (b) anode

(c) Anode or cathod                     (d) none of these