Combination of Resistors

JEE Main Physics · Current Electricity · 39 questions, latest first

• Two resistors of 200 Ω and 400 Ω are connected in series with a battery of 100 V. A bulb rated at 200 V, 100 W is connected…20262 April, Shift 2 · Q38
• A regular hexagon is formed by six wires each of resistance r Ω and the corners are joined to the centre by wires of same…202624 January, Shift 2 · Q36
• The reading of the ammeter (A) in steady state in the following circuit (assuming negligible internal resistance of the ammeter)…202624 January, Shift 2 · Q45
• Two resistors of 100 Ω each are connected in series with a 9 V battery. A voltmeter of 400 Ω resistance is connected to measure…202624 January, Shift 1 · Q36
• A wire of uniform resistance λ Ω / m is bent into a circle of radius r and another piece of wire with length 2 r is connected…202623 January, Shift 1 · Q40
• Two known resistances of R Ω and 2 R Ω and one unknown resistance X Ω are connected in a circuit as shown in the figure. If the…202621 January, Shift 2 · Q37
• A wire of resistance R is bent into a triangular pyramid as shown in figure with each segment having same length. The resistance…20257 April, Shift 1 · Q36
• From the combination of resistors with resistances values R_1=R_2=R_3=5 Ω and R_4=10 Ω, which of the following combination is the…20254 April, Shift 2 · Q37
• A wire of length 25 m and cross-sectional area 5 mm^2 having resistivity of 2 × 10^-6 Ω m is bent into a complete circle. The…20253 April, Shift 1 · Q37
• In the figure shown below, a resistance of 150.4 Ω is connected in series to an ammeter A of resistance 240 Ω. A shunt resistance…20253 April, Shift 1 · Q49
• A wire of resistance R is bent into an equilateral triangle and an identical wire is bent into a square. The ratio of resistance…202528 January, Shift 1 · Q34
• Find the equivalent resistance between two ends of the following circuit202528 January, Shift 1 · Q36
• A wire of resistance 9 Ω is bent to form an equilateral triangle. Then the equivalent resistance across any two vertices will be…202524 January, Shift 1 · Q48
• The net current flowing in the given circuit is ____ A.202522 January, Shift 2 · Q47
• Sliding contact of a potentiometer is in the middle of the potentiometer wire having resistance R_p=1 Ω as shown in the figure.…202522 January, Shift 1 · Q39
• The equivalent resistance between A and B is:20249 April, Shift 1 · Q41
• In the given figure an ammeter A consists of a 240 Ω coil connected in parallel to a 10 Ω shunt. The reading of the ammeter is…20246 April, Shift 2 · Q53
• A wire of resistance 20 Ω is divided into 10 equal parts, resulting pairs. A combination of two parts are connected in parallel…20245 April, Shift 2 · Q56
• In the given figure R_1=10 Ω, R_2=8 Ω, R_3=4 Ω and R_4=8 Ω. Battery is ideal with emf 12 V. Equivalent resistant of the circuit…20245 April, Shift 1 · Q42
• Twelve wires each having resistance 2 Ω are joined to form a cube. A battery of 6 V emf is joined across point a and c. The…20244 April, Shift 1 · Q56
• Equivalent resistance of the following network is ____ Ω.202431 January, Shift 1 · Q56
• Two resistance of 100 Ω and 200 Ω are connected in series with a battery of 4 V and negligible internal resistance. A voltmeter…202430 January, Shift 2 · Q56
• A potential divider circuit is shown in figure. The output voltage V_0 is:202430 January, Shift 1 · Q49
• In the given circuit, the current in resistance R_3 is:202429 January, Shift 2 · Q41
• In the given circuit, the current flowing through the resistance 20 Ω is 0.3 A, while the ammeter reads 0.9 A. The value of R_1…202429 January, Shift 2 · Q56
• Three voltmeters, all having different internal resistances are joined as shown in figure. When some potential difference is…202427 January, Shift 2 · Q41
• A wire of resistance R and length L is cut into 5 equal parts. If these parts are joined parallely, then resultant resistance…202427 January, Shift 1 · Q41
• Given below are two statements: Statement I: The equivalent resistance of resistors in a series combination is smaller than least…202315 April, Shift 1 · Q50
• A network of four resistances is connected to 9 V battery, as shown in figure. The magnitude of voltage difference between the…202315 April, Shift 1 · Q60
• The current flowing through R_2 is:202311 April, Shift 2 · Q49
• 10 resistors each of resistance 10 Ω can be connected in such as to get maximum and minimum equivalent resistance. The ratio of…202310 April, Shift 1 · Q60
• The equivalent resistance between A and B as shown in figure is:20238 April, Shift 2 · Q50
• As shown in the figure, the voltmeter reads 2 V across 5 Ω resistor. The resistance of the voltmeter is ____ Ω.20236 April, Shift 2 · Q58
• Equivalent resistance between the adjacent corners of a regular n -sided polygon of uniform wire of resistance R would be:20231 February, Shift 2 · Q11
• Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: For measuring…20231 February, Shift 2 · Q13
• The equivalent resistance between A and B is ____.202330 January, Shift 2 · Q11
• In the given circuit, the equivalent resistance between the terminal A and B is ____ Ω.202325 January, Shift 1 · Q24
• A cell of emf 90 V is connected across series combination of two resistors each of 100 Ω resistance. A voltmeter of resistance…202324 January, Shift 2 · Q17
• As shown in the figure, a network of resistors is connected to a battery of 24 V with an internal resistance of 3 Ω. The currents…202324 January, Shift 1 · Q19