Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
A/c toOhm's law
R = `"V"/"I"`
Here V = 0.1 volt and I = 2 A
R = `0.1/2` = 0.05Ω
APPEARS IN
संबंधित प्रश्न
Find the equivalent resistance between points A and B

Draw a V-I graph for a conductor at two different temperatures. What conclusion do you draw from your graph for the variation of resistance of conductor with temperature?
You have three resistors of values 2 `Omega`, 3 `Omega`, and 5 `Omega`. How will you join them so that the total resistance is less than 2 `Omega`?
What do you mean by power rating of an electrical appliance? How do you use it to calculate
(a) the resistance of the appliance and
(b) the safe limit of the current in it, while in use?
When do you say that the resistors are connected in this way? Draw a circuit diagram.
Name the material of wire used for making standard resistances. Give a reason.
How does the resistivity of a semiconductor depend on temperature?
The voltage applied to a given rheostat is made four times its initial value. By what factor will be resistance of the rheostat change?
Two wires of same material and same lengths have radii in the ratio of 2 : 3, Compare their resistances.
The resistance of two resistors joined in series is 8Ω and in parallel is 1.5Ω. Find the value of the two resistances.
