Advertisements
Advertisements
प्रश्न
Mark the correct choice
- Assertion: Electric appliances with a metallic body have three wire connections.
- Reason: Three-pin connections reduce the heating of the connecting wires.
पर्याय
if both the assertion and the reason are true and the reason is the correct explanation of the assertion.
if both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
if the assertion is true, but the reason is false.
if the assertion is false, but the reason is true.
Advertisements
उत्तर
If the assertion is true, but the reason is false.
Correct Reason:
Three-pin connections to protect the electrical shock. Because appliances carry a high electric current.
APPEARS IN
संबंधित प्रश्न
State four most common electrical appliances based on heating effect of electric current. Why do we use finely heated platinum wire in surgery?
Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.
An electric room heater draws a current of 2.4 A from the 120 V supply line. What current will this room heater draw when connected to 240 V supply line?
Heat energy is being produced in a resistance in a circuit at the rate of 100 W. The current of 3 A is flowing in the circuit. What must be the value of the resistance?
Explain the heating effect of electric current.
Which of the following is correct?
The heating element of an electric iron is made up of:
Unscramble the following words:
SFEU
An MCB can be used instead of a fuse in an electrical circuit.
Assertion: A current-carrying wire should be charged.
Reason: The current in a wire is due to the flow of free electrons in a definite direction.
