EASY
10th Tamil Nadu Board
IMPORTANT
Earn 100

State Joule's law of heating?

Important Questions on Electricity

EASY
10th Tamil Nadu Board
IMPORTANT
An alloy of nickel and chromium is used as the heating element. Why?
EASY
10th Tamil Nadu Board
IMPORTANT
How does a fuse wire protect electrical appliances?
HARD
10th Tamil Nadu Board
IMPORTANT
Explain about domestic electric circuit.
MEDIUM
10th Tamil Nadu Board
IMPORTANT
What are the advantages of LED TV over the normal TV?
EASY
10th Tamil Nadu Board
IMPORTANT
List the merits of LED bulbs.
EASY
10th Tamil Nadu Board
IMPORTANT
An electric iron consumes energy at the rate of 420 W when heated at the maximum rate and 180 W when heated at the minimum rate. The applied voltage is 220 V. What is the current in each case?
EASY
10th Tamil Nadu Board
IMPORTANT
A 100 watt electric bulb is used for 5 hours daily and four 60 watt bulbs are used for 5 hours daily. Calculate the energy consumed (in kW h) in the month of January.
EASY
10th Tamil Nadu Board
IMPORTANT
A torch bulb is rated at 3 V and 600 mA. Calculate it’s power (in watt).