Electric Current And It's Effects

Identify the symbol-

• Electric Bulb

• Electric Cell

• Battery

• Switch in ON position

• Switch in OFF position

In olden days (a)   were fitted in all buildings to prevent damage to electrical circuits and possible fires by high volt of current.(Please answer in small letters)

Which of the following devices usually can break a circuit - (Choose one or more options)

• Switches

• Fuses

• MCBs

• Miniature Circuit Breakers

Which of these are features of electro magnet usually? Choose one or more options

• Temporary

• Strong

• Needs Electricity

• Weak

Urvashi made a circuit and saw that some pins kept nearby were being attracted to the wires this is due to the __________ effect of electric current.

• Heating

• Gravitational

• Magnetic

• Attractive

Which of these is the symbol of a bulb?

• 
• 
• 
• 

Electric Bell works on the principle of-

• Magnetism

• Electromagnetism

• Gravitation

• Static Electricity

A bell only rings one time when switched on (The gong is hit only one time) because-

• Insufficient Electricity

• Electromagnet turned to or replaced by a permanent magnet

• Wiring Problem

• A mystical force

Ram saw a coil of wire glowing red hot in his room heater. What is it?

• Glower

• Just a coil of wire that became very hot

• Element

• A new kind of bulb

LEDs full form is-

• Light Era Diode

• Light Etern Dot

• Light Emitting Dot

• Light Emitting Diode