In 10s, a charge of 25C leaves a battery, and 200j of energy are delivered to an outside circuit as a result.
- What is the p.d. across the battery?
- What current flows from the battery?
Download our app for free and get started
t = 10s
Q = 25C,
Energy deliverd = work done = 200J
$\text{p}.\text{d}.=\frac{\text{Work done}}{\text{Charge moved}}=\frac{200}{25}=8\text{V}$
$\text{I}=\frac{\text{Q}}{\text{t}}=\frac{25}{10}=2.5\text{A}$
Q = 25C,
Energy deliverd = work done = 200J
$\text{p}.\text{d}.=\frac{\text{Work done}}{\text{Charge moved}}=\frac{200}{25}=8\text{V}$
$\text{I}=\frac{\text{Q}}{\text{t}}=\frac{25}{10}=2.5\text{A}$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1A wire is 1.0m long, 0.2mm in diameter and has a resistance of $10Ω.$ Calculate the resistivity of its material?View Solution
- 2Calculate the area of cross-section of a wire if its length is 1.0m, its resistance is $23 Ω$ and the resistivity of the material of the wire is $1.84\times10 Ω\ \text{m}.$View Solution
- 3The electrical resistivities of three materials P, Q and R are given below:$\begin{matrix}\text{P}&2.3\times10^{3}\Omega\text{ m}\\\text{Q}&2.63\times10^{-8}\Omega\text{ m}\\\text{R}&1.0\times10^{15}\Omega\text{ m}\end{matrix}$View Solution
Which material will you use for making:- Electric wires.
- Handle for soldering iron, and
- Solar cells?
- 4In the circuit shown below, the voltmeter reads $10V.$View Solution
- What is the combined resistance?
- What current flows?
- What is the p.d. across $ 2 Ω$ resistor?
- What is the p.d. across $3 Ω$ resistor?
- 5View SolutionCalculate the cost of operating a heater of 500W for 20hours at the rate of? ₹3.90 per unit.
- 6View SolutionAn electric heater is connected to the 230V mains supply. A current of 8A flows through the heater.
- How much charge flows around the circuit each second?
- How much energy is transferred to the heater each second?
- 7What will be the resistance of a metal wire of length $2$ metres and area of cross-section $1.55 \times 10m $, if the resistivity of the metal be $2.8 \times 10 m?$View Solution
- 8View SolutionState and explain Joule’s law of heating.
- 9What is, highest, and lowest, resistance which can be obtained by combining Com resistors having the following resistances?View Solution
$4 Ω, 8 Ω, 12 Ω, 24 Ω$ - 10Calculate the work done in moving a charge of $4$ coulombs from a point at $220$ volts to another point at $230$ volts.View Solution