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NEETPhysicsCurrent Electricity

In the network shown in figure, points ( A , B ) and C are at potentials of (70 ~V , 0 ) and 10 V respectively. (a) Point D is at a potential of 40 V. (b) The currents in the sections ( AD , DB , DC ) are in the ratio (3: 2: 1 ) (c) The currents in the sections ( AD , DB , DC ) are in the ratio (1: 2: 3 ). (d) The network draws a total power of 200 W.

Options

  1. Aonly a is correct
  2. Ba and c are correct
  3. Ca, b, d are correct
  4. DNone

Correct answer

C. a, b, d are correct

Step-by-step solution

( aligned & I₁+I₂+I₃=0 & V₀-70 10 + V₀-0 20 + V₀-10 30 =0 & V₀=40 volt & I₁=3 ~A & I₂=2 ~A & I₃=1 ~A aligned )

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