Advertisements
Advertisements
प्रश्न
What does an electric circuit mean?
Advertisements
उत्तर
A continuous and closed path of an electric current is called an electric circuit. An electric circuit consists of electric devices, source of electricity and wires that are connected with the help of a switch.
संबंधित प्रश्न
How many milliamperes as there in 1 ampere?
If the lamps are both the same in the figure given below and if A1 reads 0.50 A, what do A2, A3, A4 and A5 read?
Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? why?
The lamps in a house hold circuit are connected in parallel because:
(a) this way they required less current
(b) if one lamp fails the others remain lit
(c) this way they require less power
(d) if one lamp fails the other also fail
If the current passing through a conductor is doubled, what will be the change in heat produced
Name two devices which work on the heating effect of electric current.
State three factors on which the heat produced by an electric current depends. How does it depend on these factors?
If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?
Complete the following sentence:
A fuse is a short piece of wire of high ......... and low
Find the effective resistance in the following circuit diagrams (Fig.):
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The total energy supplied by the battery in 10 minutes
Kilowatt hour is the unit of
- What is meant by electric current?
- Name and define its unit.
- Which instrument is used to measure the electric current? How should it be connected in a circuit?
What are the effects of electric current?
For current to flow, one needs art open circuit.
