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Chapter 4: Q81PP (page 847)

What is the maximum current that flows in the thread during this experiment if the voltage source is a 9-V battery? (a) about 1 A; (b) about 0.1 A; (c) about 1渭A; (d) about 1 nA.

Short Answer

Expert verified

Option (d) is correct.

Step by step solution

01

Ohm’s law

Electric current is proportional to voltage and inversely proportional to resistance, according to Ohm's law.

Imax=VR

02

Solution

For the maximum current;

Least Resistance9脳109惟

VoltageV=9.0V

Putting the values;

Imax=VRImax=9.0V9脳109惟=1.0脳10-9A=1.0nA

Hence, option (d) is correct.

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Most popular questions from this chapter

You connect a battery, resistor, and capacitor as in Fig. 26.20a, where R = 12.0 鈩� and C = 5.00 x 10-6 F. The switch S is closed at t = 0. When the current in the circuit has a magnitude of 3.00 A, the charge on the capacitor is 40.0 x 10-6 C. (a) What is the emf of the battery? (b) At what time t after the switch is closed is the charge on the capacitor equal to 40.0 x 10-6 C? (c) When the current has magnitude 3.00 A, at what rate is energy being (i) stored in the capacitor, (ii) supplied by the battery

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