Part A What current is needed to generate the magnetic field strength of 5.0×105

Question

Part A

What current is needed to generate the magnetic field strength of 5.0×105T at a point 2.4 cm from a long, straight wire?

Express your answer to two significant figures and include the appropriate units.

Part B

What current is needed to generate the magnetic field strength of 5.0×103T at a point 2.4 cm from a long, straight wire?

Express your answer to two significant figures and include the appropriate units.

Part C

What current is needed to generate the magnetic field strength of 1.0T at a point 2.4 cm from a long, straight wire?

Express your answer to two significant figures and include the appropriate units.

Part D

What current is needed to generate the magnetic field strength of 10T at a point 2.4 cm from a long, straight wire?

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

we know that magnetic field due to straight current carrying wire is given by

B = uo i /2piR

i = B*R/(uo/2pi)

A) putting the values, i = 5e-5*0.024/2e-7

= 6.0 A

b) puttingthe values, i = 5e-3*0.024/2e-7

= 6.0 *10^2 A

c) puttingthe values, i = 1*0.024/2e-7

= 1.2* 10^5 A

d) puttingthevalues, i = 10*0.024/2e-7

= 1.2* 10^6 A

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