Advertisements
Advertisements
प्रश्न
State whether the potential is a scalar or vector?
Advertisements
उत्तर
Potential is also a scalar quantity.
APPEARS IN
संबंधित प्रश्न
Name a device that helps to maintain a potential difference across a conductor.
State two causes of energy loss in a transformer.
A battery of emf 12 V and internal resistance 2 Ω is connected with two resistors A and B of resistance 4 Ω and 6 Ω respectively joined in series.

Find:
- Current in the circuit.
- The terminal voltage of the cell.
- The potential difference across 6Ω Resistor.
- Electrical energy spent per minute in the 4Ω resistor.
What is the unit of electric charge?
The following table shows current in Amperes and potential difference in Volts.
Which law will the graph prove? Explain the law.

A 10 m long wire of a particular material is of resistance 5Ω What will be the resistance of 10m long wire of the same material but the double radius.
A 10 m long wire of a particular material is of resistance 5Ω What will be the resistance if the wire is stretched to double its length?
Twenty-seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop.
Study the following circuit and find:

- Effective resistance of the circuit
- Current drawn from the battery
- Potential difference across the 5 omega resistor
