Explanation:
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How long should you hold a stretch? 10-30 seconds 90 seconds 5 minutes
2 answers:
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This is the open switch 2 cells connecting wire and bulb
Answer:
The current in second wire is 5.0 A.
(B) is correct option.
Explanation:
Given that,
Current in first wire = 3.7 A
Distance = 8.0 cm
We need to calculate the magnetic field due to the current carrying wire
Using formula of magnetic field
Where, I = current
r = distance
Put the value into the formula
For first wire
...(I)
For second wire,
The distance is 8-3.7 = 4.3 cm
...(II)
The magnetic field in both the wires,
From equation (I) and (II)
Hence, The current in second wire is 5.0 A.