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
When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Calculate the value of the resistance of the resistor.
Fill in the following blank with suitable words:
Resistance is measured in .............. The resistance of a wire increases as the length ..............; as the temperature ..............; and as the cross-sectional area .............. .
Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance?
What is an ohmic resistor? Give one example of an ohmic resistor. Draw a graph to show its current voltage relationship. How is the resistance of the resistor determined from this graph?
Two metallic spheres A and B kept on insulating stands are in contact with each other. A positively charged rod P is brought near the sphere A as shown in the figure. The two spheres are separated from each other, and the rod P is removed. What will be the nature of charges on spheres A and B?
State Ohm’s law.
Explain the equivalent resistance of a parallel resistor network.
State Ohm’s law? How can it be verified experimentally? Does it hold good under all conditions? Comment.
Two cells of same emf E but internal resistance r1 and r2 are connected in series to an external resistor R (Figure). What should be the value of R so that the potential difference across the terminals of the first cell becomes zero.
