The switch S is initially at position a for a long time. It is then switchedto position 6. Describe what happens to the light bulb as a function oftime when the switch is flipped from a to 8?) bulbThe light bulb was on and stays on.The light bulb was off. It then lights up but the brightnessdecreases with time and eventually goes off.O The light bulb was off and stays off.O The light bulb was on but goes off immediately.The light bulb was on but its brightness decreases with time andeventually goes off.

Answered: Image /qna-images/answer/8787c53e-7ccb-489e-8000-9e4652cb7167.jpg

Answered: The switch S is initially at position a…

The switch S is initially at position a for a long time. It is then switched to position 6. Describe what happens to the light bulb as a function of time when the svitch is flipped from a to 6?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 94CP: Consider the circuit below, (a) What is the initial current through resistor R2? when the switch is...

See similar textbooks

Similar questions

. The generator at a large power plant has an output of 1,000,000 kW at 24,000 V. (a) If it were a DC generator, what would he the current in it? (b) What is its energy output each day—in joules and in kilowatt—hours? (c) If this energy is sold at a price of 10 cents per kilowatt-hour, how much revenue does the power plant generate each day?
Check Your Understanding A transformer steps the line voltage down from 110 to 9.0 V so that a current of 0.50 A can be delivered to a doorbell (a) What is the ratio of the number of turns in the primary and secondary windings? (b) What is the current in the primary winding? (c) What is the resistance seen by the 110-V source?
Complete the calculation in Example 31.3 by proving that 0e2Rt/Ldt=L2R
In the circuit of Figure P27.25, the switch S has been open for a long time. It is then suddenly closed. Determine the time constant (a) before the switch is closed and (b) after the switch is closed. (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. Figure P27.25 Problems 25 and 26.
a. Does the induced emf in a circuit depend on the resistance of the circuit? (b) Does the induced current depend on the resistance of the circuit?
A transformer is used to down 110 V from a wall socket to 9.0 V for a ro. (a) If the primary winding has 500 turns, how many s does the secondary winding have? (b) If the radio operates at a current of 500 mA, what is the current 500 mA, what is the current through the primary winding?
For the circuit shown below, =50V , R1= 10 , and L= 2.0 mH. Find the values of l1and l2(a) immediately after switch S is closed, (b) a long time after S is closed, (C) immediately after S is reopened, and (d) a long time after S is reopened.
You are trying to become a member of the Physics Olympics team. Your physics professor is training you and some other students by having you compete with each other to solve problems as accurately and quickly as you can. During one session, he springs the RLC circuit shown in Figure P32.47 (page 872) on you. Figure P32.47a shows the circuit with a battery as the energy source. The battery has an emf E and internal resistance r. He tells you the following, assuming switch S has been at position a for a long time: If only switch SL is closed, and switches SC and SR are open, and then switch S is thrown to position b, the time constant of the circuit is 1 = 0.200 ms. Switch S is returned to position a for a long time. Figure P32.47 If only switch SC is closed, and switches SL and SR are open, and then switch S is thrown to position b, the time constant of the circuit is 2 = 0.050 0 ms. Switch S is returned to position a for a long time. In Figure P32.47b, an AC source with a variable frequency has been added to the same circuit, and switch S is thrown to position b. Switches SC, SL, and SR are all open. At what angular frequency should the AC source be set so that the circuit exhibits resonance? Quick! Get to work!
A transformer is used to supply a 12-V model train with power from a 110-V wall plug. The train operates at 50 W of power, (a) What is the rms current in the secondary coil of the transformer? (b) What is me rms current in the primary coil? (c) What is the ratio of the number of primary to secondary turns? (d) What is the resistance of the tram? (e) What is the resistance seen by the 110-V source?
Suppose a motor connected to a 120 V source draws 10.0 A when it first starts. (a) What is its resistance? (b) What current does it draw at its normal operating speed when it develops a 100 V back emf?
A long, inexpensive extension cord is connected from inside the house to a refrigerator outside. The refrigerator doesn't run as it should. What might be the problem?
A motor operating on 240 V electricity has a 180 V back emf at operating speed and draws a 12.0 A current. (a) What is its resistance? (b) What current does it draw when it is first started?