A 900 kilogram compact car was stopped at a traffic light when an 1800 kilogram luxury sedan struck it from behind the two cars
1 answer:
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Answer with Explanation:
We are given that
Resistivity of copper wire=
Diameter=d=
Radius of copper wire=
Radius of solenoid=r'
1 m=100 cm
a.Length of wire=l=11.3 m
Area of wire=A=
Where
A=
Resistance, R=
Using the formula
B.Length of solenoid= m
Number of turns=
=60
C.Potential difference,V=3 V
Current,I=
I=
D.Total length =0.1 m
Number of turns per unit length,n=
Magnetic field along central axis inside of the solenoid,B=