An electric source can supply a charge of 500 coulomb. If the current drawn by a device is $25 \mathrm{mA}$ , find the time in which the electric source will be discharged completely.

Electricity

Electric Current

Official Answer

The time in which the electric source will be discharged completely can be calculated using the formula: $t = \frac{Q}{I}$ where Q is the charge supplied by the electric source and I is the current drawn by the device.

timeelectric sourcechargecurrent

Marking Scheme

1Identify the given values of Q and I
2Use the formula $t = \frac{Q}{I}$ to calculate the time
3Substitute the values and calculate the time

Hint

Use the formula $t = \frac{Q}{I}$ to calculate the time.

Quick Oral Answer

The time in which the electric source will be discharged completely is 20000 s.

Analysis & Explanation

The time in which the electric source will be discharged completely depends on the charge supplied by the source and the current drawn by the device. The formula $t = \frac{Q}{I}$ is used to calculate the time.

Common Mistakes

1Forgetting to convert the current from mA to A
2Using the wrong formula

Interesting Facts

The time in which the electric source will be discharged completely depends on the charge supplied by the source and the current drawn by the device.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2024?

This question carries 2 marks in the CBSE Class 10 Science 2024 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Electricity" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Electric Current" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2024 paper?

This is a Very Short Answer question from Section B in the CBSE Class 10 Science 2024 paper.