Advertisements
Advertisements
Question
Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential differences of the battery will be ____________ V.
Solution
Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential differences of the battery will be 1.5 + 1.5 + 1.5 = 4.5 V.
RELATED QUESTIONS
Calculate the quantity of heat produced in a 20 Ω resistor carrying 2.5 A current in 5 minutes.
How much work is done in moving a charge of 2 C across two points having a potential difference of 12 V?
Define one coulomb charge.
The other name of potential difference is:
What is Ohm's law? Explain how it is used to define the unit of resistance.
Keeping the potential difference constant, the resistance of a circuit is doubled. By how much does the current change?
A current of 200 mA flows through a 4 kΩ resistor. What is the p.d. across the resistor?
Define the following:
Potential difference
Find the resistance of a conductor if the electric current flowing through it is 0.35 A when the potential difference across it is 1.4 V.
A current of 100 mA. flows through a wire. The charge on an electron is 1.6 × 10-19 C. Find the number of electrons passing per second through the cross-section of the conductor.