A potentiometer wire has a length 2 m and resistance of 10 Q. It is connected in series with resistance of 990 Q and a cell of e.m.f. 2 volt. Calculate the potential gradient along the length of wire.

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Q: You have a circuit and you measure the current and find it is 9.51 micro A. You measure the…

A: Current, I = 9.51 μA = 9.51 x 10-6 A Voltage, V = 5.42 mV = 5.42 x 10-3 V Determine resistance R.

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Q: Resistance of potentiometer wire is 12 per meter. A Daniel cell of e.m.f. 1.08 v balances at 216 cm…

A: To find-(1) Current through wire=?(2) Balancing length (l2)=?Given-Resistance per meter=1 ohmE1=1.08…

Q: R1 = 35 Ω, R2 = 20 Ω, and R3 = 15 Ω. The battery supplies an emf of ε = 220V. What is the equivalent…

A: R1= 35 Ω, R2= 20 Ω, and R3= 15 Ω Equivalent resistance, Rs = 35+20+15     = 70 Ω In series…

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Q: A battery has emf 30.0 V and internal resistance r. A 9.00 Ω resistor is connected to the terminals…

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A: Given data:  Battery voltage (V) = 20 V Circuit diagram Required: Voltage drop across the resistor…

Q: Three resistors, R1 = 17.3, R2 = 13.2, R3 = 78.0, are connected in series across a 16.6 V battery.…

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Q: 6.6N and R 4.9n. The capacitor has a capacitance C-13.4 µF. The emf source, E, of the circuit shown…

A: R1 = 6.6 Ω R2 = 4.9 Ω C = 13.4 μF Q = 17.1 μC

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Q: A small bulb delivers an electrical power of 7.5 W when operated at 125 V. The tungsten filament has…

A: Power = 7.5 WV = 125 volts Using P = V2/RR = 1252 /7.5R = 2083.33 ohm α = 4.5 * 10-3

Q: The length of potentiometer wire is 4 m and its resistance is 18 2. A battery if e.m.f. 2 V and…

A: We need to compute here-(i)Potential gradient VL(ii)E.m.f. of cell(E1)The data provided is given as-…

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A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A battery has emf 30.0 V and internal resistance r. A 9.00 resistor is connected to the terminals of…

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Q: An electrical conductor of 1.50 mm in diameter and is 48.0 m longhas 8.5 x 1028 free electrons per…

A: Given: Length of wire: L=48 [m] Diameter of wire: d=1.5 [mm]=0.0015 [m] Radius of wire: r=0.00075…

Q: PA were to go Voitage dropped across their resistance Select one: O A3,45 x10° v O B. 3.45 μν 3.45…

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Q: The potential difference across a resting neuron in the human body is about 70.0 mV, and the current…

A: WE KNOW THAT POWER P=IVgiven V=70mVI=200μA

Q: In the circuit given below, V= 120 V. Find the node voltages vy.12. and v3. 5 k2 50 V 75 V 2 6 A 10…

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Q: A small bulb is rated at 7.50 W when operated at 125 V. The tungsten filament has a temperature…

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Q: a.Estimate the electrical resistance of the blood in a 50cm long, 3mm diameter artery. The…

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Q: Three resistors are connected as shown below. R1 = 3.0 Ω, R2 = 6.0 Ω, and R3 = 8.0 Ω. The voltage…

A: I1 = 4.0 AExplanation:To solve the problem, we will first treat R1 and R2 as a single entity, R12,…

Q: Three resistors, R1 = 17.3, R2 = 13.2, R3 = 78, are connected in series across a 16.6 V battery.…

A: Given: The resistance R1 is 17.3 Ω. The resistance R2 is 13.2 Ω. The resistance R3 is 78 Ω.  The…

Q: For Questions 6-7, Three resistors and a capacitor are connected as shown in the figure. 2.5 ko 2.5…

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Q: An electric heater is constructed by applying a potential difference of 95.1V across a wire with a…

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Q: A potentiometer wire has a length of 4 m and a resistance of 10 Q. The wire is connected to a…

A: To find-(1) Potential drop per unit length(2) Balancing lengthGiven-L=4 mR=10 ohmE=4 Vr=2 ohmE1=1.5…