Advertisements
Advertisements
प्रश्न
Define electric potential and potential difference.
Advertisements
उत्तर
- Electric Potential: The electric potential at a point is defined as the amount of work done in moving a unit positive charge from infinity to that point against the electric force.
- Electric Potential Difference: The electric potential difference between two points is defined as the amount of work done in moving a unit positive charge from one point to another point against the electric force.
APPEARS IN
संबंधित प्रश्न
Calculate the quantity of heat produced in a 20 Ω resistor carrying 2.5 A current in 5 minutes.
What do you understand by the term "potential difference"?
For the circuit shown in the diagram below:
What is the value of:
(i) current through 6 Ω resistor?
(ii) potential difference across 12 Ω resistor?
Which one of the following is the correct set-up for studying the dependence of the current on the potential difference across a resistor and why?
Suppose there are three resistors A, B, and C having resistances r1, r2, and r3 respectively. If R represents their equivalent resistance, establish the following relation R = r1 + r2 + r3 when joined in series.
Conceptual question.
Does a solar cell always maintain the potential across its terminals constant? Discuss
Assertion (A): Charges flow from higher potential to lower potential.
Reason (R): Current flows mainly due to the flow of electrons.
Inside a hollow charged spherical conductor, the potential ______
Study the following circuit and find:
- Effective resistance of the circuit
- Current drawn from the battery
- Potential difference across the 5 omega resistor
What does the positive and negative sign of potential convey?
