MDCAT
Physics
2005
Physics · Current Electricity
Work through this past-paper style MCQ, then read the full explanation. Practice more physics questions on mMCQ with adaptive drills and topic analytics.
Question
What is the current in a 2×106 ohms resistor having a potential difference of 6×10-3 volts?
Options
- A
1×10-3 A
- B
2×10-3 A
- C
3×10-3 A
- D
4×10-3 A
Explanation
We know according to ohm's law.
V=IR
I = V/R
Putting values
We get answer
3×10-3 A
6 divided by 2 is 3 not 1.
6 divided by 2 is 3 not 2.
We know according to Ohm's law.
V=IR
I = V/R
Putting values
We get answer
3×10-3 A
6 divided by 2 is 3 not 4.
Tagged under Physics · Current Electricity · 2005