Explanations & Calculations
Available data
- Magnetic field = 0.4G=0.4×10−4μT=0.4×10−10T
- Angle of dip = 600
- Speed of the moving rod = 10ms−1
- Length of it = 5m
Then,
- The horizontal component of the field is
Bh=0.4G×cos60=0.2G
- Vertical component of it is
Bv=0.4G×sin60=0.346G
(1) When the rod is moved parallel to the horizontal component, it is the magnetic field's vertical component that is being cut by the rod.
- Then the induced EMF will be
E=∣Bv∣.l.v=0.346×10−10T×5m×10ms−1=1.73×10−9V
(2) Similarly it is the horizontal component of the field that is being cut when the rod is moved parallel to the vertical component.
- Then the induced EMF will be
E=0.2×10−10×5×10=1nV
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