Advertisements
Advertisements
प्रश्न
A complete circuit is left on for several minutes, causing the connecting copper wire to become hot. As the temperature of the wire increases, the electrical resistance of the wire
विकल्प
decreases
remains the same
increases
increases for some time and then decreases
उत्तर
increases
APPEARS IN
संबंधित प्रश्न
Draw circuit symbols for
a cell
Observe the following figure which bulb get fuse?
A battery is to be formed by joining 3 dry cells with connecting wires. Show how will you connect the wires by drawing a diagram.
Explain the following:
Open circuit
The switch is used to close or open an electric circuit.
Study the electric circuit below. Which of the following switches should be closed so that only two bulbs will light up
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
The wiring in a house consists of ______ circuits.
What is the role of the earth wire in domestic circuits?
In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be
![]() |
![]() |
![]() |
(i) | (ii) | (iii) |