Question

) Choose the correct answer (show calculation wherever it is needed) (03 Marks) Find l2, if a) 1A b) -1 A c) 100 m/A d) -100 mA 1. 41h+412-2 and 61+ 71:-4 2. If in the plot of voltage vs current, there is a linear line then what's the significance of the slope: a) Power b) Discriminant e) Resistance d) None of the given option 3, what is the total resistance of the circuit, if R1-50 Ω, R-100 Ω and R-150 Ω a) 27.27 b) 25.27 c) 28.25 d) 29.27 TAI R1 we have three resistances of values 2 Ω, 3 Ω and 6, which or the following combination will give an effective resistance of 4 Ω? a) All the three resistances in parallel b) 2 Ω resistance in series with parallel combination of 3 Ω and 6 Ω resistance c) 3 Ω resistance in series with parallel combination of 2 Ω and 6 Ω resistance d) 632 resistance in series with parallel combination of 2 92 and 3 2 resistance. 4. 5. Relation between currents according to KCL is b) İrtirti sti: c) ii-is-iz-is-is d) irtis-iztistis

Answer 1

Find I_2 4I_1 + 4I_2 = 2 6I_1 + 7I_2 = 4 implies 4I_1 = 2 - 4I_2 I_1 = 2 - 4I_2/4 6(2 - 4I_2/4) + 7I_2 = 4 12 - 24I_2 + 28I_2 = 16 4I_2 = 4I_2 = 1 A dy/dx = v/I = Resistance option (c) = 50 Vertical-bar Vertical-bar 100 Vertical-bar Vertical-bar 150 total resistance = 50 times 100/50 + 100 Vertical-bar Vertical-bar 150 = 33.33 times 150/33.33 + 150 three resistance 6 ohm 2 ohm 3 ohm 2 ohm in series with parallel combination of 3 ohm and 6 ohm resistance = 2 + 3 times 6/6 + 3 R_eft = 4 ohm incoming current = outgoing current i_1 + i_s = i_2 + i_3 + i_4 \r\n find I_2 4I_1 + 4I_2 = 2 6I_1 + 7I_2 = 4 implies 4I_1 = 2 - 4I_2 I_1 = 2 - 4I_2/4 6(2 - 4I_2/4) + 7I_2 = 4 12 - 24I_2 + 28I_2 = 16 4I_2 = 4 I_2 = 1 A option (a) dy/dx = v/I = resistance option (c) = 50 Vertical-bar Vertical-bar 100 Vertical-bar Vertical-bar 150 total resistance = 50 times 100/50 + 100 Vertical-bar Vertical-bar 150 = 33.33 times 150/33.33 + 150 = 27.27 ohm three resistance 6 ohm, 2 ohm, 3 ohm 2 ohm