Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 32, Problem 9PLA
To determine
The emf of the dry cell.
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If the electricity in an area costs $0.11 per kWh (kilowatt times hour), how much does it cost to run a 60W lightbulb at 120V continuously for 30 days? Show your work.
The filament of a certain light bulb is made of tungsten and has a length of 0.48 m and a circular cross-section with a diameter of 0.062 mm.
a. Calculate the resistance of the filament at room temperature.
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I need to show all work please
Please show work
a) Assuming the circuit represented by the plot is Ohmic, what is the approximate resistance ofthis circuit?
b) What is the power dissipated when 10V are applied?
c) What is the energy dissipated if it is held at 10V for 1 minute?
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Physics Laboratory Manual
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- What is the equivalent resistance of a Red-Green-Brown resistor in series with a parallel combination of Brown-Green-Red and Orange-Black-Red resistors? Show your work.arrow_forwardCarry out part c make the missing answer in the image, place step by step to arrive at the result. What If? How would the readings in the ammeter (in mA) and voltmeter (in volts) change if the 4.50 V battery was flipped so that its positive terminal was to the right? Answer: ideal ammeter_______ mAarrow_forwardPlease fill out the template below with the work for this problem. Note that you need to have a picture, a list of knowns and unknowns, the general equation/s you will use, and the math steps to solve for the unknown, only plug in the numbers after you have solved for the unknown, and the answer with units included. Question 1: A current of 2.72 A flows through a wire. How many electrons flow past a particular point in the wire every 15 seconds?arrow_forward
- Consider the circuit shown in Figure 4, where R1 = 1.0 kΩ, R2 = 2.0 kΩ, R3 = 5.6 kΩ andthe power supply voltage is 2 V. Use these resistance and power supply voltage values andKirchhoff’s Laws to find the theoretical values of currents I1, I2, and I3. Show your workexplicitly.arrow_forwardA triangular array of resistors is shown in the figure on the right. What current will this array draw from a 35.0V battery having negligible internal resistance if we connect it across a.) ab; b.) bc and c.) ac?arrow_forwardUse your measurements (from the experimental results) to verify that both of Kirchoff's Laws have been fulfilled for this circuit. Show your work and fill in the 'calculated' side of the table above.arrow_forward
- Please fill out the template with the work for this problem. Note that you need to have a picture, a list of knowns and unknowns, the general equation/s you will use, and the math steps to solve for the unknown, Only plug in the numbers after you have solved for the unknown, and the answer with units included. Problem 1: A negative charge of q = -8.3 × 10-17C and m = 1.2 × 10-26 kg enters a magnetic field B = 1.3 T with initial velocity v = 410 m/s, as shown in the figure. The magnetic field points into the screen. Calculate the magnitude of the magnetic force F on the charge, in newtons.arrow_forwardUsing Ohm’s Law and the power equation, make a formula for electric power that only uses voltage and resistance. To do this, rearrange the variable in Ohm’s Law so that it is I = instead of V = and plug that answer in for I in the power equation. Then simplify. Show all your work below:arrow_forwardPlease answer A and B The six resistors with resistance R = 5Ω are connected to thebattery supply as shown in Fig below A) Show step by step the equivalent circuit. B) Calculate the total current through the battery whose voltage is 25 V.arrow_forward
- Calculate the resistance of a circuit with 1.7A flowing across a potential difference of 73V show your workarrow_forward3question4 Show all work picture attatched Calculate the value of the resistance Rled in Circuit #1, to ensure that a GREEN LED will have a current of 10 mA Type your answer here or paste the image of your handwriting solution herearrow_forwardTwo 100 Ohm resistors are connected in series. What is the equivalent resistance? What is the current through the resistors in part d if they are connected to the same 9 V battery?arrow_forward
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