Question

Which of the following statements is true? (A) The current in a wire depends on the...

Which of the following statements is true?

(A) The current in a wire depends on the potential of the battery.

(B) The current in a wire depends on the thickness of the wire.

Both A and B.
B only.
A only.

Neither.

The resistivity of a wire depends on which of the following?

(A) The physical dimensions of the wire.

(B) The voltage of the battery to which the wire is attached.

A only.
Neither.
Both A and B.
B only.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Are the following statements true or false? a. Autonomous expenditure is expenditure that depends on the...
Are the following statements true or false? a. Autonomous expenditure is expenditure that depends on the current level of income. b. Firms always produce the most they can at a given price. c. Firms only produce what they can sell at a given price. d. If prices do not adjust, the economy will produce at a level of output that is different from potential output.
Which is true about the inductance of a solenoid? A) It depends on the area of...
Which is true about the inductance of a solenoid? A) It depends on the area of each turn but not on the number of turns per unit length. B) It depends on the number of turns per unit length but not on the area of each turn. C) It depends on the number of turns per unit length and the area of each turn. The current though an inductor increases at a certain rate. Which is true about the self-induced...
Indicate true or false in each of the following statements: True False  A horizontal wire containing a...
Indicate true or false in each of the following statements: True False  A horizontal wire containing a current toward the east will have a negative Hall potential from the bottom to the top of the wire. True False  Two antiparallel currents attract each other. True False  A + charge initially moving east through the earths magnetic field along the equator will fall faster than if it is moving west. True False  The direction of the magnetic field in a current carrying coil is parallel...
a) A student measured the voltage across and current through an aluminum wire using a voltmeter...
a) A student measured the voltage across and current through an aluminum wire using a voltmeter and ammeter. The power supply was a battery. Sketch the circuit and how the student attached the meters to make her measurements. b) Here is the student's data: (0, 0), (1.01, 0.35), (1.49, 0.80), (2.67, 1.10), (3.00, 1.35). Each datum is given as a (volts, amps) pair. Make a scatter plot of current versus voltage. Label your axes appropriately. Find the best estimate of...
Choose true or false for each statement regarding the resistance of a wire. true false  While maintaining...
Choose true or false for each statement regarding the resistance of a wire. true false  While maintaining a constant voltage V, the current I increases when the cross-sectional area A of a wire expands. true false  While maintaining a constant voltage V, the current I increases when the resistivity ρ of a wire decreases. true false  The resistivity ρ is proportional to the resistance R of a wire. Tries 0/2 Choose true or false for each statement regarding resistors in a circuit. true...
A coil of wire is wrapped around a cyliner-shaped piece of iron. Which of the following...
A coil of wire is wrapped around a cyliner-shaped piece of iron. Which of the following statements are true: a) If current is made to flow in the wire, the iron cylinder becomes a magnet. b) if the iron is a magnet, current is iduced to flow in the wire. c) a & b are both true d) a & b are both false
The width of the contact of each wire with your skin is 1.00 cm and the...
The width of the contact of each wire with your skin is 1.00 cm and the thickness of the conducting layer of your skin is 0.026 mm. Assuming that these two dimensions define an area through which the current flows, calculate the resistivity of your skin.
A 2.36-mm diameter copper wire (resistivity 1.68 × 10-8Ω∙m) carries a current of 15.6 A. What...
A 2.36-mm diameter copper wire (resistivity 1.68 × 10-8Ω∙m) carries a current of 15.6 A. What is the potential difference (in volts) between two points 194 m apart? A carbon resistor has a resistance of 19.17 Ω at a temperature of 21.1 °C. At what temperature (in °C) its resistance will drop to 12.93 Ω? (The temperature coefficient of resistivity for carbon is -5.0 × 10-4/C°.) A battery with an emf of 5.87 volts and an internal resistance 2.47 ohms...
Which of the following statements is/are true?   Multiple Choice A. The rate of return required by...
Which of the following statements is/are true?   Multiple Choice A. The rate of return required by the market on a bond that is held until maturity is called the coupon rate. B. A zero coupon bond is one that initially sells at a discount and only makes one payment to bondholders. Both A and B are true. Neither A nor B are true.
A 100 meters long wire with diameter 2 millimeter is attached to a 6 Volts battery....
A 100 meters long wire with diameter 2 millimeter is attached to a 6 Volts battery. You measured that it draws current I = 11.2 amps. a) What is the resistance b) What is the resistivity of the wire c) Is the resistivity close to any known metals. Compare with one type of material and find the percent error. d) What happens to resistance and resistivity of the same wire if we cut the length in half.