The graphite core of a certain pencil has a diameter of 2.43 mm, and it is...
The graphite core of a certain pencil has a diameter of 2.43 mm, and it is 13 cm long. The resistance is measured to be 11.2 ohms. Determine the resistivity of the graphite core.
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The graphite core of a certain pencil has a diameter of 2.43 mm,
and it is...
71. A student makes a homemade resistor from a graphite pencil 5.00 cm long, where the graphite i...
71. A student makes a homemade resistor from a graphite pencil 5.00 cm long, where the graphite is 0.05 mm in diameter. The resistivity of the graphite is 5 ρ 1.38 10 / m − = ×Ω . The homemade resistor is place in series with a switch, a 10.00-mF capacitor and a 0.50-V power source. (a) What is the RC time constant of the circuit? (b) What is the potential drop across the pencil 1.00 s after the switch...
Pencil "lead" is actually carbon Part A What is the resistance of the 0.750 mm -diameter,...
Pencil "lead" is actually carbon Part A What is the resistance of the 0.750 mm -diameter, 5.10 cm -long lead from a mechanical pencil? Submit Request Answen Provide Feedback Next >
A certain wire has a diameter of 1.2 mm and a length of 210 m. If...
A certain wire has a diameter of 1.2 mm and a length of 210 m. If it has a resistance of 30 ohms and 20 degrees celsius, what is the resistiviy?
A certain wire has a diameter of 1.2 mm and a length of 250 m. If...
A certain wire has a diameter of 1.2 mm and a length of 250 m. If it has a resistance of 23 ohms and 20 degrees celsius, what is the resistiviy?
What length of a certain metal wire of diameter 0.15 mm is needed for the wire...
What length of a certain metal wire of diameter 0.15 mm is needed for the wire to have a resistance of 15 ?? The resistivity of this metal is 1.68
Suppose you have a 24 m long piece of copper wire with a 2.1 mm diameter...
Suppose you have a 24 m long piece of copper wire with a 2.1 mm diameter and a resistivity of 1.72 × 10-8 Ω⋅m. What is the resistance of the copper wire, in ohms?
A wire of diameter 0.750 mm and length 45.0 m has a measured resistance of 1.20...
A wire of diameter 0.750 mm and length 45.0 m has a measured resistance of 1.20 Ω. What is the resistivity of the wire?
2. A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of...
2. A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of 7.65 x 10-7 S2cm. (a) Calculate its resistance. (b) If a 3.85 volt battery is connected to the wire, w hat current exists in the circuit? (7 pts)
A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of 7.65...
A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of 7.65 x 10^(-7) cm a. Calculate its resistance (For part a. i've seen people multiply by 4 and some not which is the correct way to solve this?) b. If a 3.85 volt battery is connected to the wire, what current exists in the circuit?
Consider a wire with resistivity of 2.20x10-7 Ω m, a diameter of 9.50 mm, and a...
Consider a wire with resistivity of 2.20x10-7 Ω m, a diameter of 9.50 mm, and a length of 29 m. Determine the resistance of the wire in ohms (Ω). Round your answer to three significant figures.
Pencil "lead" is actually carbon Part A What is the resistance of the 0.750 mm -diameter, 5.10 cm -long lead from a mechanical pencil? Submit Request Answen Provide Feedback Next >
2. A 16.50 cm long wire has a diameter of 0.355 mm and a resistivity of 7.65 x 10-7 S2cm. (a) Calculate its resistance. (b) If a 3.85 volt battery is connected to the wire, w hat current exists in the circuit? (7 pts)
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