Of the two bulbs in a house, one glows brighter than the other. Which of the two has a larger resistance?
The brightness of a bulb is inversely proportional to its resistance for a given voltage. When two bulbs are connected to the same voltage source, the bulb with the higher resistance will consume less current, resulting in dimmer light. Conversely, the bulb with lower resistance allows more current to pass through, thus glowing brighter. Therefore, the dim bulb has the larger resistance.
An electron possesses a negative charge of:
How many electrons taken together make one coulomb?
One ohm is equal to:
Where do we use wires that melt quickly and break when large electric currents pass through?
Which one of the following figures correctly shows the variation of electric potential V (in units of ) and electric field E (in units of ) with distance r for a point charge Q?
In case of electrostatic shielding of a cavity, following two statements are given
S1 At any point inside the cavity, electric field is zero.
S2 At all points inside the cavity, the potential is same.
Which of the following is correct?
The electric field components in the figure shown is non-uniform and given by px along x-axis only. The flux through the cube of edge 0.1 m is about (p = 1000 N C⁻¹ m⁻¹)
