A metal rod of length 0.50 m slides at a constant 4.0 m s⁻¹ along two frictionless horizontal rails joined by a 2.0 Ω resistor. A uniform field of 0.30 T acts vertically. Neglecting the resistance of the rod and rails, what external force is needed to keep the rod moving at constant speed?

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A metal rod of length 0.50 m slides at a constant 4.0 m s⁻¹ along two frictionless horizontal rails joined by a 2.0 Ω resistor. A uniform field of 0.30 T acts vertically. Neglecting the resistance of the rod and rails, what external force is needed to keep the rod moving at constant speed?

More NEET Physics chapters

Practising is step one. Knowing what to practise next is the hard part.

Practising is step one. Knowing what to practise next is the hard part