# A solid metal cube of edge length 2 cm is moving in a positive y direction at a constant speed of 6m/s. there is a uniform magnetic field of 0.1 T in the positive z-direction. The potential difference between the two faces of the cube perpendicular to the x-axis, is: (a) 6 mV (b) 1 mV (c) 12 mV (d) 2 mV

## Question ID - 50221 :- A solid metal cube of edge length 2 cm is moving in a positive y direction at a constant speed of 6m/s. there is a uniform magnetic field of 0.1 T in the positive z-direction. The potential difference between the two faces of the cube perpendicular to the x-axis, is: (a) 6 mV (b) 1 mV (c) 12 mV (d) 2 mV

3537

Potential difference between two faces perpendicular to x-axis will be .( × )=12mV

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 A parallel plate capacitor is of area 6 and a separation 3mm. The gap is filled with three dielectric materials of equal thickness (see figure) with dielectric constants =10, =12 and =14. The dielectric constant of a material which when fully inserted in above capacitor, gives same capacitance would be : (a) 12 (b) 4 (c) 36 (d) 14 