[object Object]
[object Object]
विषय
मुख्य विषय
अध्याय
Please select a subject first
Advertisements
Advertisements
State the commercial unit of electrical energy.
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What do you mean by 'power-voltage' rating of electrical appliances?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
Advertisements
Name the physical quantity which equals the product of voltage and current.
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
The marking on an electric bulb reads; 200 V, 60 W. What does it mean?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
The resistance of 100 W (220 V) bulb is greater than that of 60 W (220 V) bulb. Is it true or false?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What will be the current drawn by an electric bulb of 40 W when it is connected to a source of 220 V?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What do you mean by watt-hour?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What do you mean by direct current?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What do you mean by A.C.?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
How does an alternating current differ from the direct current?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
Which type of current does a generator with commutator produce?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What do you mean by short-circuiting?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
State two important precautions you should observe while using electricity?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
Many electrical appliances and circuits are earthed grounded. What is the reason for this?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
Are switches connected in the neutral or live wire?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What do you mean by a solenoid?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
Can a copper wire be used as a fuse wire?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
What type of electricity is supplied to us at houses?
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
The diagram shows two ways of connecting three lamps P, Q and R to A.C. supply of 220 V.
Name the two arrangements. Which of them would you prefer in a household circuit? Give a reason for your answer.
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
Tick(✓) the correct choice in the following:
When the length of a conductor is doubled the resistance of the conductor
will
Chapter: [8] Current Electricity
Concept: undefined >> undefined
Concept: undefined >> undefined
