A conductor carries a steady current and 30 C of charge flows past a point in 6 seconds. What is the current?
A5 A
B0.2 A
C36 A
D180 A
Answer & Solution
Correct answer: A. 5 A
1. Current is the rate of flow of charge: $I = \dfrac{Q}{t}$.
2. Substitute $Q = 30\,\text{C}$ and $t = 6\,\text{s}$.
3. $I = \dfrac{30}{6} = 5\,\text{A}$.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 4 Electricity "Electricity", p.62_
Keep practising Effects of Electric Current
Browse all Effects of Electric Current questions for Tamil Nadu SSLC (Class 10), or explore more Science topics.
Related questions
Fill the Ohm's-law blanksWhat is the role of the earth (ground) wire in a domestic electric circuit?A wire of resistance R is cut into five equal parts. What is the resistance of each part?Two resistors give 2 ohm when joined in parallel and 9 ohm when joined in series. What areA wire of resistance 10 ohm is stretched uniformly until its length becomes three times thWhy does a bulb glow when the switch in a simple circuit is closed?A torch bulb is rated 3 V and draws a current of 600 mA. What electric power does it consuAn electric heater of power 1000 W is used for 3 hours every day. How much electrical ener