Advertisements
Advertisements
प्रश्न
Paheli took a wire of length 10 cm. Boojho took a wire of 5 cm of the same material and thickness. Both of them connected the wires as shown in the circuit given in the following figure. The current flowing in both the circuits is the same.
- Will the heat produced in both cases be equal? Explain.
- Will the heat produced be the same if the wires taken by them are of equal lengths but of different thickness? Explain.
Advertisements
उत्तर
- No, the amount of heat produced in both cases will not be equal. The amount of heat produced in a wire depends upon the length of the wire.
- No, the amount of heat produced in the wire depends upon the thickness of the wire.
APPEARS IN
संबंधित प्रश्न
How does the resistance of a wire vary with its area of cross-section?
An electric heater is connected to the 230 V mains supply. A current of 8 A flows through the heater.
- How much charge flows around the circuit each second?
- How much energy is transferred to the heater each second?
Identify the figure and give its use.
Name any six domestic appliances based on the heating effect of electric current.
What is a short circuit?
Unscramble the following words:
SFEU
A student boils water in an electric kettle for 20 minutes. Using the same mains supply he wants to reduce the boiling time of water. To do so should he increase or decrease the length of the heating element? Justify your answer.
An electric fuse is a wire made up of a material having ______ melting point.
Define the following:
Electrolyte
An electric kettle consumes 1 kW of electric power when operated at 220 V. A fuse wire of what rating must be used for it?
