A potentiometer wire has a length of 4 m and a resistance of 10 Q. The wire is connected to a battery of e.m.f. 4 V and internal resistance 2 . Find the potential drop per cm of the wire. What length of the wire will balance a cell of e.m.f. 1.5 volt?
Q: A current of 5 A flows through an electric heater of resistance 22 Q. The voltage drop across the…
A:
Q: 20. A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the…
A:
Q: a. What diameter of copper wire [p = 2.65 x 10^-8 ohm.m) should be used so that a 22.0 m length will…
A: Part (a) Given: The resistivity of copper wire is ρ=2.65×10-8 Ω·m. The length of wire is L=22.0 m.…
Q: X1. A straight, cylindrical wire lying along the x-axis has a length of 0.5 m and a diameter of 0.2…
A:
Q: A battery with an emf of 40 V and internal resistance of 0.4 Q is connected across a load resistor…
A:
Q: 19. A current of 25.0 mA is measured in the circuit below. what voltage must the battery supply?
A:
Q: a. Suppose a cylindrical wire is 1.00 meters #4 Resistance and Ohm's Law in length with a radius of…
A:
Q: A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 32°F, its…
A: Given Initial resistance R0 = 220 ohm Final resistance R = 214 ohm Initial temperature To = 32oF…
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: Two resistors, with resistances R1=5 ohms and R2= 25 ohms, are connected in series in a ciruit.…
A:
Q: An electric heater is constructed by applying a potential difference of 112V across a wire with a…
A: Given : Potential difference = 112 V Resistance = 15 Ω
Q: A potentiometer wire has a length 10 m and a resistance 2 Q2. Its 2 . Its terminals are connected to…
A: To find- (a) Balancing length when cells assist each other (L1)=? (b) Balancing length when cells…
Q: A conductor has a cross-sectional area of 2.3x 10-6 m and the number of free electrons per unit…
A: Drift speed is given by - Drift speed= current/(n × e ×A) Where, n=number density e=Electric…
Q: The current in a resistor decreases by 8 A when the voltage applied across the resistor decreases…
A:
Q: What is the equivalent resistance between points A and B when R= 78.7 Q?
A: The resistance of '5R' on the top and the resistance of 'R' on the left hand side are in series. So,…
Q: 2. A wire has a diameter of 10mm, length 50m and resistivity 3.8 x10-8Qm. What is the resistance of…
A: 2 3:
Q: A thermometer made of Platinum has a resistance of 50 at 20 C, what is the measured temperature (in…
A:
Q: A certain wire has a resistance R. What is the resistance of a second wire, made of the same…
A: Concept: The Formula for the Resistance is R=ρLAhere,R=Resistanceρ=ResistivityL=Length of wireA=Area…
Q: R1 = 40 Calculate the current in the circuit. What is the potential difference between Vb and Va…
A:
Q: A certain resistor has a current of 2.4 A and a resistance of 153 2. a. What is the voltage across…
A:
Q: A piece of wire of length 31.5 cm and cross-sectional area 227.4 cm² is made into a resistor of…
A: Given: The length of the wire is 31.5 cm. The area of the wire is 227.4 cm2. The resistance of the…
Q: 2.00 3.0 V L. 3 2. The lightbulb in the circuit diagram above has a resistance of 1.0 0. Consider…
A:
Q: An uncharged 5.9-μF capacitor is in series, through a switch, with a 5.65-MΩ resistor and a 29-V…
A:
Q: la. This resistor has a resistance of 48002, and 32mA of current flows to the left into it. The…
A: Hi, as this problem contains multiple sub-parts, hence the first three sub-parts will be solved for…
Q: Two aluminum wires have the same resistance. If one has twice the length of the other. What is the…
A: Let the length of the shorter wire is L having diameter d. And length of the longer wire is 2L…
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-…
Q: What is the resistance of the block measured between the two square ends?
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: hat is the electrical resistance of a copper wire that has a radius of 0.80 mm and a length of 2.0…
A: Given: The radius of the wire is 0.8 mm. The length of the wire is 2 m. The resistivity of the wire…
Q: If Ri = 36 Q, R2 = 76 Q, and R3 = 110 Q, find the current through R1. Source of emf1 (E1) = 15 V…
A:
Q: Two resistors of equal resistance R are connected in parallel across a cell with emf V. What is the…
A: Given : Two resistors of equal resistance R are connected in parallel across a cell with emf V.
Q: If 5.0 × 10" electrons pass through a 20 N resistor in difference across the resistor? 3. 21 V b. 32…
A: Given: The number of electrons is 5x1021. The time interval is 10 min. The resistance of the…
Q: What is the resistance of a 6.5m long wire of radius 1.0 mm if its resistivity is 1.8 x 10° Qm? O a.…
A:
Q: A capacitor of capacitance C is connected to four resistors R1 = 652, R2 =40 R; = 92 and 4= 62 and a…
A:
Q: 9. Four resistors R₁ = 30 02, R₂ = 65 2, R₂ = 20 02, and R₁ = 40 2 are connected as shown below.…
A: The circuit diagram is shown below.
Q: A battery has ɛ= 30 V,
A:
Q: A length of metal wire has a radius of 0.004 m and a resistance of 0.11 2. When the potential…
A:
Q: 4. A 4.2 ks resistor is connected to a 9V battery. When measured, the battery has a voltage of 8.85…
A:
Q: When 1104.1 V is applied across a wire that is 5.8 m long and has a 0.30 mm radius, the magnitude of…
A: Given: The supply voltage is V=110a.1 V. The length of the wire is L=5.8 m. The radius of the…
Q: Find the resistance (in the unit of Ohm) of a Nichrome rod of diameter d=10 mm and has a length L=7…
A:
Q: A light bulb is rated at 300 W when operated at 120 V. How much charge in C enters (and leaves) the…
A:
Q: 39. A voltage of 12 V is placed across a copper wire circuit with a wire length of 1.0 m and…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps