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प्रश्न
Electric cells having 2V potential difference each have been connected in the form of a battery. What will be the total potential difference of the battery in both cases?
उत्तर
- Total potential difference = 2 + 2 + 2 = 6 V
- Total potential difference = 2 + 2 + 2 + 2 = 8 V
संबंधित प्रश्न
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:
1) Current in the circuit
2) The terminal voltage of the cell
3) The potential difference across 6Ω Resistor
4) Electrical energy spent per minute in the 4Ω resistor.
Which of the following statements correctly defines a volt?
(a) a volt is a joule per ampere.
(b) a volt is a joule per coulomb.
Which device is used to measure p.d?
Calculate the work done in moving a charge of 4 coulombs from a point at 220 volts to another point at 230 volts.
Define the unit of resistance (or Define the unit "ohm").
Write an expression for the electrical power spent in flow of current through a conductor in terms of resistance and potential difference.
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?
100 J of heat is produced each second in a 4 Ω resistor. The potential difference across the resistor will be:
Find out the following in the electric circuit given in Figure
- Effective resistance of two 8 Ω resistors in the combination
- Current flowing through 4 Ω resistor
- Potential difference across 4 Ω resistance
- Power dissipated in 4 Ω resistor
- Difference in ammeter readings, if any.
Inside a hollow charged spherical conductor, the potential ______
