Question: What would be the current in the lightbulb in Example 4.6 if it sustained a voltage drop of 120. V and required a power of

What would be the current in the lightbulb in Example 4.6 if it sustained a voltage drop of 120. V and required a power of 100. W?

Example 4.6

A battery sustains a voltage drop of 3.0 V across a small lightbulb and produces a current of 0.1 A through the lightbulb. What is the power required by the lightbulb?

Need: Power of lightbulb in watts (W).

Know: Voltage across bulb is 3.0 V. Current through lightbulb I = 0.1 A.

How: Use Equation (4.7), P = I × V, that is, power ¼ voltage [1] current.

Step by Step Solution

★★★★★

3.49 Rating (172 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The power required by the lightbulb is 03 W If the voltage drop acr... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Exploring Engineering Introduction Questions!

What would be the power required by the lightbulb in Example 4.6 if it sustained a voltage drop of 120. V? Example 4.6 A battery sustains a voltage drop of 3.0 V across a small lightbulb and produces...

What will be the current in the motor of Example 21-9 if the load causes it to run at half speed?

What would be the value of F_ in Example 10. 19 If were used? Why is it less than 1? ST

LRC Circuit Electromagaesm Labs 1.. Introduction IE Brief Description of the Cancegrs The purpose of this experiment is to study an inductorresistor-capacitor circuit [LRC circuit), most importantly...

MUST BE IN OWN WORDS FOR POINTS Analyze the Current Situation Identify the Strategic Managers "Case 30 Tesla Motors, as the first U.S. Car Company IPO Since 1956 Alan N. Hoffman Bentley University...

Please help me .. am stuck... please address all questions clearly:- The power rating of a motor can be modified to account for different ambient temperature, according to the following table:...

Statistics Questions:- The power rating of a motor can be modified to account for different ambient temperature, according to the following table: Ambient 30 35 C 40 C temperature C Variation of...

1. Calculate the electric potential difference if 1750 J of electric potential energy is transformed to move 3.1 C of electrons. T 2. Calculate the energy transformed in a 15 V adapter that has 0.075...

ACTIVITY 1 Example Exercise 1 Finding the current by Ohmfs law. A 6.00-V battery is Find the resistance by Ohmfs law. A potential applied to a circuit having a resistance of 10.0 (2. Find difference...

IN C++ Specification: Given a DC circuit with voltage supply Vdd (e.g., 5V) and resistors R1, R2, ... Rn connected in series, the current flow i can be calculated by i = Vdd / SUM (R1, R2, ..., Rn)...

Q5. The message signal m(t), whose frequency spectrum is shown in the following figure. m(t) is the input of the given block diagram where y, (t) = x(t) + x (t). The bandpass filter has a bandwidth...

How does maximizing a firm's human and social capital yield success? Include in your discussion organizational culture and mindset. Compare best-in-class firms to others. You may want to do a bit of...

9. A consumers budget set for two goods (X and Y) is 800 4X + 2Y. (LO2) a. Illustrate the budget set in a diagram. b. Does the budget set change if the prices of both goods double and the consumers...

2. We talk a great deal about getting buy-in with the strategic direction of the organization. How should managers develop buy-in from the acquired company personnel? How would getting the support of...

What is the role of a filter in a grating monochromator?

What are the advantages and disadvantages of decreasing monochromator slit width?

The pathlength of a cell for infrared spectroscopy can be measured by counting interference fringes (ripples in the transmission spectrum). The following spectrum shows 30 interference maxima between...

The investment banking firm of Einstein & Co. will use a dividend valuation model to appraise the shares of the Modern Physics Corporation, Dividends at the end of the current year will be $1.64. The...

When property is disposed of, what factors influence the amount of the deductible loss

Four years ago, you acquired a 30-year loan of $140,100, charging 6.6% annual interest, compounded monthly, and requiring monthly payments. At this time, interest rates on 20-year loans have dropped...