| | - Teacher Name : Rakesh
- Total Questions : 25
- Time Allowed : 60
- Total Marks : 25
Q 1 :Electrical resistivity of a given metallic wire depends upon Q 2 :A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly Q 3 :What is the maximum resistance which can be made using five resistors each of 1/5 Ω Q 4 :what is the minimum resistance which can be made using five resistors each of 1/5 Ω? Q 5 :Which of the following represents voltage? Q 6 :A Cylindrical conductor of length I and uniform area of cross-section A has resistance R. Another conductor of length 2 I and resistance R of the same material has area of cross-section Q 7 :Unit of electric power may also be expressed as Q 8 :An electric kettle consumes 1 kw of electric power when operated at 220 V. A fuse wire of what rating must be used for it? Q 9 :The resistivity does not change if Q 10 :if the current I through a resistor is increased by 100%, the increase in power dissipated will be Q 11 :Two resistors of resistances 2Ω and 4Ω when connected to a battery will have Q 12 :correct formula for Joule's law of heating is Q 13 :What sets electrons into motion in an electric circuit? Q 14 :Keeping the potential difference constant, the resistance of a circuit is halved. The current will become. Q 15 :The heating element of an electric iron is made up of Q 16 :Electric power is inversely proportional to Q 17 :Which of the following gases are commonly filled in electric bulbs? Q 18 :The unit of charge is Q 19 :A body can be negatively charged by Q 20 :The SI unit of electric current is Q 21 :Volt is the SI unit of Q 22 :No current flows between two charged bodies when connected, If they have the same Q 23 :the surface of the earth is taken to be at Q 24 :Of the following groups, which one contains only good conductors of electricity? Q 25 :The electrical appliances in the houses are connected with each other in
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