Advertisements
Advertisements
Question
Ohm’s law states the relationship between power and voltage.
Options
True
False
Advertisements
Solution
Ohm’s law states the relationship between power and voltage - false.
Correct Statement:
Ohm’s law states the relationship between potential difference and current.
APPEARS IN
RELATED QUESTIONS
Keeping the p.d. constant, the resistance of a circuit is halved. The current will become:
(a) one-fourth
(b) four time
(c) half
(d) double
In the circuit shown in the figure, find the total resistance of the circuit and the current in the arm AD.

Calculate the effective resistance across AB?

Consider the sacle of voltmeter shown in the diagram and answer the following questions :

(a) What is the least count of the voltmeter?
(b) What is the reading shown by the voltmeter ?
(c) If the voltmeter is connected across a resistor of 20 `Omega` how much current is flowing through the resistor?
What are ohmic conductors? Give one exmaple. Draw a graph showing the current-voltage relationship for an ohmic conductor.
Draw a neat diagram for the verification of Ohm’s law by voltmeter-ammeter method. By another diagram show the relation between p.d. and current.
Which of the following I-V graph represents ohmic conductors?
State Ohm’s law? How can it be verified experimentally? Does it hold good under all conditions? Comment.
State Ohm's Law. Represent it mathematically.
