1. Tifanny is trying to get a light to burn brighter by increasing the current in its circuit.Would it make sense to add another resistor in series with the light bulb. Explain why orwhy not.Answer:Explenation:2. Jennifer has two extension cords. They are the same length, but one is thicker than theother. Which one can carry more current? Explain.Answer:Explenation:

Answer (1) No , adding a resistor in series with the bulb doesn’t allow it to light brighter…

Answered: 1. Tifanny is trying to get a light to…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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16. A parallel plate capacitor used in a flash for a camera must be able to store 31.0 J of energy when connected to 312 V. (Most electronic flashes actually use a 1.50- to 6.00-V battery, but increase the effective voltage using a dc–dc inverter.) Assuming the capacitor completely discharges to produce a flash in 7.40×10−3 s, what average power is dissipated in the flashbulb during this time? _____kW
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16. You see a group of small fuse holders on a DIN rail in an industrial control cabinet. The fuse holders are in groups of five and are separated by a single terminal block. What's connected to that terminal block? A. System ground B. A control signal C. The AC or DC power to the fuses D. The power supply neutral 17. Which one of the following types of raceway offers the greatest protection for the conductors in the raceway? A. Metal wireway B. EMT conduit C. Rigid conduit D. Flexible conduit 18. Class 1 conductors or cables may be run with other Class 1 conductors if they all A. are part of different machine circuits. B. have different power supplies. C. have reduced voltages on the conductors. D. have the same insulation value.
3. In the figure below R₁ = 40.00R₂ = 30.00, and the ideal battery has emf-110V. What is the current at point a if we close (a) only switch S1, (b) only switches S1 and S2, and (c) all three switches? 18 R₁ www R₁ S3 RR₁ Im Im R₂ R₂
1. A series circuit has 3 resistors of values 10, 20, and 30 Ohms and a current of 2.0 Amps. What must be the voltage supplied to the circuit? a) 50 volts b) 250 volts c) 120 volts d) 25 volts 21V , 102 50 50 2. In the above 10-Ohm resistor, what is the current reading after the power supply? a) 0.60 A b) 3.0 A ) 1.2A d) 2.4A
2. A 0.30-m-long metal bar is moving to the left at constant speed of 20 m/s perpendicular to a uniform 2.0 T magnetic field. The bar rides on parallel metal rails connected through a 6.00 resistor, so the apparatus makes a complete circuit, as shown in the figure below. Ignore the resistance of the bar and the rails.
Lesson4.... light1 $2.002 A Syntax 4.0Ω Σ5.00 x Module6Lesson2A... 12.0V O 13 VIRLab T 8:0 5. Assume that the ammeter in the figure below is removed and the current that flows through the 4.00 path, I3, is unknown. Determine all the currents in the circuit. x Module+7+Lesson... CircuitBuilder x Module+7+Le... P

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