Answer:
1.86 × 10 ∧-3 V/m
≅ 1.9 × 10 ∧-3 V/m
Explanation:
Radius of long solenoid (R)= 3 cm
Turns per meter (n) = 2500
current flowing in coil (I) = 0.30 sin (200 t)
Time (t) = 2.5 ms
Distance at which electric field calculated (r) = 4 cm
The main solution is shown in the picture attached below.
Thank you and i hope it helps.
1. ice is turning into water 2.stirfoam burning in the fire 3. butter melting in a pan
4.a child growing
Answer:
6
Explanation:
Following are the possible transition
1 ) 4 to 3
2) 4 to 2
3) 4 to 1
4 ) 3 to 2
5 ) 3 to 1
6 ) 2 to 1 .
There are altogether 6 wavelengths of photons possible .
This result can be achieved with the help of permutation and combination.
No of ways in which 2 things can be selected out of 4 things , combination being all different.
₂C⁴ = (4 X 3) / 2 = 6.
