Advertisements
Advertisements
प्रश्न
What happens to the resistance, as the conductor is made thicker?
Advertisements
उत्तर
The resistance of a conductor is inversely proportional to the area of cross-section of the conductors. Hence, resistance is inversely proportional to the square of the radius of the conductor.
R ∝ \(\frac{1}{A}\)
R ∝ \(\frac{1}{r^2}\)
When a conductor is made thicker, the radius will be increased and so its resistance will be decreased.
APPEARS IN
संबंधित प्रश्न
Resistance of a wire depends on, ______.
Exercise.
The values of current (I) flowing through a resistor for various potential differences V across the resistor are given below. What is the value of resistor?
| I (ampere) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 |
| V (volt) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 |
The effective resistance of three resistors connected in series is lesser than the lowest of the individual resistances.
What is resistance?
The resistance of a straight conductor is independent of ______.
What is the maximum resistance one can make with ten 1Ω resistors?
Three resistors are connected in series with a cell. If the current in each resistor is 1.5A, then the current through the cell will be ______.
The ______ is the measure of opposition offered by the component to the flow of electric current through it.
Define the following:
Fixed resistor
Define the term resistance.
