Browse the questions, answers and explanations for JEE MAIN.
3 questions · Page 1 of 1
Two resistors of 4 Ω and 6 Ω are connected in parallel across a 12 V supply. What is the total current drawn from the supply?
1.2 A
2 A
5 A
3 A
Correct Answer: C — 5 A
Explanation:
Current through 4 Ω: A. Current through 6 Ω: A. Total: A.
The maximum number of electrons that can be accommodated in the 3rd shell (n = 3) is:
8
18
32
10
Correct Answer: B — 18
Explanation:
Maximum electrons in a shell = . For n = 3: .
A projectile is launched at 30° to the horizontal with initial velocity 20 m/s. What is its horizontal range? (g = 10 m/s²)
20 m
40 m
20√3 m
10√3 m
Correct Answer: C — 20√3 m
Explanation:
m.
