Figure 2 shows how a small weight placed on the insulating bar makes the wire X go back and balance in its original position. The wire X is 5 cm long and carries a current of 1.5 A. The small weight causes a clockwise moment of 4.8 × 10−4 Nm. Calculate the magnetic flux density where the wire X is positioned Give the unit. – 6081

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Q1

Figure 2 shows how a small weight placed on the insulating bar makes the wire X go back and balance in its original position.

The wire X is 5 cm long and carries a current of 1.5 A. 

The small weight causes a clockwise moment of 4.8 × 10−4 Nm. 

Calculate the magnetic flux density where the wire X is positioned 

Give the unit.

 ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 

Magnetic flux density = _____________ Unit _____________ (6)

  1. Nimra Hassan Avatar
    Nimra Hassan

    given:

    4.8×10^-4=𝐹×8×10^−2
    F=4.8×10^-4/ 8×10 −2
    =6×10 ^−3 N.
    F=BIL
    6×10 ^−3 =B×1.5×5×10 ^−2
    6×10 ^−3 =B×7.5×10 ^−2
    B= 6×10 ^−3/7.5×10 ^−2
    =8×10 ^−2 T or Tesla

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One thought on “Figure 2 shows how a small weight placed on the insulating bar makes the wire X go back and balance in its original position. The wire X is 5 cm long and carries a current of 1.5 A. The small weight causes a clockwise moment of 4.8 × 10−4 Nm. Calculate the magnetic flux density where the wire X is positioned Give the unit. – 6081

  1. given:

    4.8×10^-4=𝐹×8×10^−2
    F=4.8×10^-4/ 8×10 −2
    =6×10 ^−3 N.
    F=BIL
    6×10 ^−3 =B×1.5×5×10 ^−2
    6×10 ^−3 =B×7.5×10 ^−2
    B= 6×10 ^−3/7.5×10 ^−2
    =8×10 ^−2 T or Tesla

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Your email address will not be published. Required fields are marked *