Advertisements
Advertisements
Question
Explain with the help of a diagram how does 'short circuiting' occur in an electric kettle.
Advertisements
Solution
APPEARS IN
RELATED QUESTIONS
Three 2 V cells are connected in series and used as a battery in a circuit.
How many joules of electrical energy does 1 C gain on passing through (i) one cell (ii) all three cells?
What is the unit of electric current?
One coulomb of charge flows through any cross-section of a conductor in 1 second. What is the current flowing through the conductor?
Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? why?
Christmas tree lamps are usually wired in series. What happens if one lamps breaks?
Distinguish between an open and a closed circuit.
The diagram shows two ways of connecting three lamps P, Q and R to A.C. supply of 220 V.
Electrical appliances have voltage and power ratings as listed below. Which
has the larger working resistance?
| Appliances | Voltage (V) | Power (W) |
| (a) Washing machine | 250 | 3000 |
| ( b) Television | 240 | 160 |
| (c)240 | 240 | 1500 |
| ( d) Hair curler | 250 | 20 |
| ( e) Car head lamp | 12 | 36 |
Coulomb is the SI unit of ____________.
