What is the equivalent resistance between A and B in the figure below if R = 3 Ω
(1) 9 Ω
(2) 12 Ω
(3) 15 Ω
(4) None of these
What is the equivalent resistance between A and B
(1)
(2)
(3)
(4) 2 R
What is the equivalent resistance of the circuit?
1. \(6~\Omega\)
2. \(7~\Omega\)
3. \(8~\Omega\)
4. \(9~\Omega\)
In the given figure, the equivalent resistance between the points A and B is :
(1) 8 Ω
(2) 6 Ω
(3) 4 Ω
(4) 2 Ω
A battery of emf 10 V and internal resistance 3 Ω is connected to a resistor as shown in the figure. If the current in the circuit is 0.5 A. then the resistance of the resistor will be
(1) 19 Ω
(2) 17 Ω
(3) 10 Ω
(4) 12 Ω
The potential drop across the 3Ω resistor is
(1) 1 V
(2) 1.5 V
(3) 2 V
(4) 3 V
If each resistance in the figure is \(9~\Omega\), then the reading of the ammeter is:
1. \(5~\text{A}\)
2. \(8~\text{A}\)
3. \(2~\text{A}\)
4. \(9~\text{A}\)
Two wires of equal diameters, of resistivities ρ1 and ρ2 and lengths l1 and l2, respectively, are joined in series. The equivalent resistivity of the combination is :
(1)
(2)
(3)
(4)
Four resistances of 100 Ω each are connected in the form of square. Then, the effective resistance along the diagonal points is :
(1) 200 Ω
(2) 400 Ω
(3) 100 Ω
(4) 150 Ω