A current of 7.3 A is maintained in a single circular loop having a circumference of 80 cm. An external magnetic field of 2.0 T is directed so that the angle between the field and the plane of the loop is 20°. Determine the magnitude of the torque (in units of N.m) exerted on the loop by the magnetic forces. Select one: OA. 0.58 ОВ.0.25 OC. 0.70 OD. 0.77 OE 0.49 Next page

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Chapter1: Units, Trigonometry. And Vectors
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298page-1
A current of 7.3 A is maintained in a single circular loop having a circumference of 80 cm. An external magnetic field of 2.0 T is directed so that
the angle between the field and the plane of the loop is 20°. Determine the magnitude of the torque (in units of N.m) exerted on the loop by
the magnetic forces.
Select one:
O A. 0.58
OB. 0.25
OC. 0.70
OD.0.77
OE. 0.49
Next page
Transcribed Image Text:298page-1 A current of 7.3 A is maintained in a single circular loop having a circumference of 80 cm. An external magnetic field of 2.0 T is directed so that the angle between the field and the plane of the loop is 20°. Determine the magnitude of the torque (in units of N.m) exerted on the loop by the magnetic forces. Select one: O A. 0.58 OB. 0.25 OC. 0.70 OD.0.77 OE. 0.49 Next page
Consider a series RC circuit as in Figure below for which R =4.2 MQ, C=2.9 µF, and ɛ=30.0 V. Find the maximum charge ( in units of ug) the
capacitor can have after a very long time of the switch S being closed.
S
R
3.
Select one:
OA. 43.50
ОВ. 174.00
OC 113.10
OD. 130.50
OE 87.00
Next page
20:48
Transcribed Image Text:Consider a series RC circuit as in Figure below for which R =4.2 MQ, C=2.9 µF, and ɛ=30.0 V. Find the maximum charge ( in units of ug) the capacitor can have after a very long time of the switch S being closed. S R 3. Select one: OA. 43.50 ОВ. 174.00 OC 113.10 OD. 130.50 OE 87.00 Next page 20:48
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