A charge of + 7 µC is placed at the centre of two concentric spheres with radius 2.0 cm and 4.0 cm respectively. The ratio of the flux through them will be
A. 1 : 4
B. 1 : 2
C. 1 : 1
D. 1 : 16
Answer:C
A charge of + 7 µC is placed at the centre of two concentric spheres with radius 2.0 cm and 4.0 cm respectively. The ratio of the flux through them will be
A. 1 : 4 B. 1 : 2 C. 1 : 1 D. 1 : 16