Advertisements
Advertisements
Question
Name a substance of which the resistance remains almost unchanged by the increase in temperature.
Advertisements
Solution
Manganin
RELATED QUESTIONS
Complete the following :-
(a)
When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:
(a) 0.3
(b) 3
(c) 4
(d) 12
Name the material which is used for making the heating element of an electric iron.
Write down an expression for the resistance of a metallic wire in terms of the resistivity.
Calculate the equivalent resistance of the following combination of resistor r1, r2, r3, and r4
Why are thick copper wires used as connecting wires?
State the effect of rise in temperature on the resistance of semi-conductors.
How does the resistivity of a semiconductor depend on temperature?
Two resistors of 4Ω and 6Ω are connected in parallel to a cell to draw 0.5 A current from the cell.
Draw a labelled circuit diagram showing the above arrangement.
When a 4 Ω resistor is connected across the terminals of a 2 V battery, the number of coulombs passing through the resistor per second is:
