Suppose a power supply has an emf of 20 Volt and an internal resistance of 10 Ohm. The maximum power (in Watt) that can be dissipated in a series resistance connected with it is: O a. 10 2020 tllul O b. 20 O c. 25 O d. 40 O e. 5 Clear my choice

Suppose a power supply has an emf of 20 Volt and an internal resistance of 10 Ohm. The maximum power (in Watt) that can be dissipated in a series resistance connected with it is: O a. 10 2020 tllul O b. 20 O c. 25 O d. 40 O e. 5 Clear my choice

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 14CQ: The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance...

See similar textbooks

Related questions

Q: Two blocks are placed in contact with one another. The one on the left has a temperature of 150 K, a...

A: Given:- Two blocks are placed in contact with one another. The one on the left has a temperature of ...

Q: A ray of light strikes a flat block of glass (n=1.50) of thickness D=3.0cm at an angle of 0=55° with...

Q: A floating ice block is pushed through a displacement d 27.0 m )î – (24.0 m )j along a straight emba...

Q: A student performed the experiment of the specific charge of copper ions and found that k = 3.03 x %...

Q: 2. Consider an electric circuit shown in Figure 2. 30 4Ω 62 ww- 82 Figure 2 a. If the current follow...

Q: Ql: Show that the force vector D = (2î - 4ĵ + k) is orthogonal to the force Vector G (3î + 4j + 10k)...

A: For orthogonal, the force vectors should perpendicular to each other. And for that, the dot product ...

Q: 12.4 (a) What is the average density of the sun? (b) What is the av- erage density of a neutron star...

Q: Two arteries of equal length are being compared, one diseased and one healthy. Blockages in the dise...

Q: In the figure, block 1 has mass m, = 480 g, block 2 has mass m, = 600 g, and the pulley is on a fric...

Q: The resistivity of an n-type extrinsic semiconductor is 0.25 N-m. If the electron mobility is 8.25 m...

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

Q: 12–106. The snowmobile is traveling at 10 m/s when it leaves the embankment at A. Determine the time...

A: Initial velocity vo = 10 m/s Angle θ = 40° To determine the time of flight from A to B and the range...

Q: Refraction Problem #2 Goal: Find the distance the light ray displaced due to the thick window and ho...

Q: Depending on the graph, the value of electric field (in v/m) is: V(V) 3. d(m) 5 Select one: a. 1.67 ...

Q: Example 28.6 Three Resistors in Parallel Problem Three resistors are connected in parallel as in Fig...

Q: Give the factors that determine the effectiveness of a force in producing rotation. Why?

A: The given problem depends upon the rotational motion of the object. The motion of an object which ca...

Q: The choices below are all efficiency ratings for heat engines. Which is a Carnot engine?

A: Efficiency of any carnot engine is always less than 1.so from the given option option (A) and option...

Q: 95 In Fig. 27-79, E, = 6.00 V, 12.0 V, R = 100 0, 200 N, and R, = 300 N. R = One point of the circui...

Q: Consider a silicon pn junction at T = 300 K with acceptor doping concentrations of 1016 cm-3 and don...

Q: A rectangular block has dimensions 2.9 cm x 3.5 cm 10.0 cm. The mass of the block is 615.0 g. What a...

Q: A sphere of mass 5.4 × 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere...

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.07 g coins stack...

Q: The angular position of a point on a rotating wheel is given by e = 6.46+ 3.18t2+2.05t³, where e is ...

A: Given value--- angular position= 6.46 +3.18t2 +2.05t3 . We have to find--- (a) the point's angula...

Q: Communications and weather satellites are often placed in geosynchronous “parking” orbits above Ear...

A: Geosynchronous orbits are orbits where the objects rotating in that orbit match the rotation of the ...

Q: Problem 12: A horizontal force, F1, and a force F2 acting at an angle of 0 to the horizontal, are ap...

Q: A solid non-conducting sphere of radius R carries a charge Q distributed uniformly throughout its vo...

A: Given : Radius of first sphere = R Radius of second sphere = 2R Charge =Q

Q: 1.In the formula X = 3YZ?, X and Z have dimensions of capacitance and magnetic induction respectivel...

Q: 5.A spring of force constant k is cut into two pieces such that one piece is double the length of th...

Q: Find the resistance of a hollow cylindrical pipe of length 1-0 m whose inner and outer radii are 10 ...

Q: oC. How much energy (in Joules) must be supplied to the machine to achieve this task? Sol. Since t...

A: GivenCold Temperature ,Tc=0°C=273 KHot temperature ,TH=24°C=24+273=297 KMass of water added ,m=85.0...

Q: Q3) What is the probability of occupying a place at a level (0.1 ev) above Fermi level at (27°C)?

Q: The graph below represents the relationship between the resistance and the length of a wire of a cro...

Q: Q1) The mobility of the electrons and the holes in an intrinsic germanium at a certain temperature i...

Q: In the figure shown, what is the oquivalent capacitance (in microFarad) of the circuit shown if each...

Q: Problem 5: A man has a weight of 735 N, and the ground pushes up on him with 735 N. What ca be said ...

Q: At what rate (in W) is thermal energy generated in the 5- resistor when ɛ = 24 V? 5.0 2 10 2 10 2 10...

Q: Provide three (3) sample problems with solutions about Projectile Motion.

Q: A current of 4.0 A is maintained in a single circular loop having a circumference of 80 cm. An exter...

Q: A man pulls a 48.0 kg box horizontally from rest while exerting a constant horizontal force, displac...

Q: A typical incandescent reading lamp runs at 60W. If it is left on constantly, how much energy (J) is...

Q: The distance between the two lenses in an astronomical tefescope is 179 cm. It has a magnification o...

A: Given value--- distance between two lense = 179 cm. magnification power = - 21.1 . We have to find...

Q: Two fully charged capacitors are in series across a 50V source. If the first one is a 1 micro Farad ...

Q: Problem 3: A boxer's fist and glove have a mass of m = 0.74 kg. The boxer's fist can obtain a speed ...

Q: Three moles of an ideal gas at 1 atm pressure and 20 °C are heated at constant pressure until the fi...

A: Given No of moles, n = 3 Pressure of gas, P = 1 atm Temperature ,T1 = 20° C = 293 K Final temper...

Q: A potential difference of 2.0 V is applied across a cylindrical conductor. The conductor is 20.0 m l...

Q: Water is flowing without friction through a pipe. At the beginning of the pipe the water is flowing ...

Q: 7.A small block slides, without friction, down an inclined plane starting from rest. Let Sn be the d...

Q: A 30-cm long solenoid is made up of 300 turns anda current I 10.0 A passes through it The surface of...

Q: the current in all three resistors is equal, which of the following statements must be true?

Q: A gold wire has a resistance R. If itš length O decrease by a factor of 2

A: GivenA gold wire has a resistance R

Question

Suppose a power supply has on emf of 20 Volt and an internal resistance of 10 Ohm. The maximum power (in
Watt) that can be dissipated in a series resistance connected with it is:
020 lm
of
O a. 10
O b. 20
О с. 25
O d. 40
O e. 5
Clear my choice

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance increases. Yet this power is also given by P = I2R, which means power increases if resistance increases. Explain why there is no contradiction here.
A 2.00- and a 7.50F capacitor can be connected in series or parallel, as can a 25.0- and a 100k resistor.Calculate the four RC time constants possible from connecting the resulting capacitance and resistance in series.
Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf, and a switch. What are a. the charge on the capacitor, b. the current in the resistor, c. the rate at which the capacitor is storing energy, and d. the rate at which the battery is delivering energy exactly 7.50 s alter the switch is closed?
A 240-kV power transmission line carrying 5.00x102. A is hung from grounded metal towers by ceramic insulators, each having a 1.00x 109- resistance. Figure 21.51. (a) What is the resistance to ground of 100 of these insulators? (b) Calculate the power dissipated by 100 of them, (c) What fraction of the power carried by the line is this? Explicitly show how you follow the steps in the Problem-Solving Strategies for Series and Parallel Resistors.
A 2.00- and a 7.50-F capacitor can be connected in series or parallel, as can a 25.0- and a 100k resistor. Calculate the four RC time constants possible from connecting the resulting capacitance and resistance in series.
The ignition circuit of an automobile is powered by a 12-V battery. How are we able generate large voltages with this power source?
Three identical 60.0-W, 120-V lightbulbs are connected across a 120-V power source as shown in Figure P28.72. Assuming the resistance of each lightbulb is constant (even though in reality the resistance might increase markedly with current), find (a) the total power supplied by the power source and (b) the potential difference across each lightbulb.
A small office-building air conditioner operates or 408-V AC and consumes 50.0 kW. (a) What is its effective resistance? (b) What is the cost of running the air conditioner during a hot summer month when it is on 8.00 h per day for 30 days and electricity costs 9.00 cenls/kW h ?
The label on a battery-powered radio recommends the use of a rechargeable nickel-cadmium cell (nicads), although it has a 1.25-V emf, whereas an alkaline cell has a 1.58-V emf. The radio has a 3.20 resistance.(a) Draw a circuit diagram of the radio and its battery. Now, calculate the power delivered to the radio (b) when using a nicad cells, each having an internal resistance of 0.0400 , and (c) when using an alkaline cell, having an internal resistance of 0.200 . (d) Does this differenceseem significant, considering that the radio's effective resistance is lowered when its volume is aimed up?
Find the current through a person and identify the likely effect on her if she touches a 120-V AC source: (a) if she is standing on a rubber mat and offers a total resistance of 300 k; (b) if she is standing barefoot on wet grass and has a resistance of only 4000 k .
What must be the emf in the circuit so that the current flowing through the 7 ohm resistor 1.80 A ? Each emf source has negligible internal resistance.
The circuit shows R= 1 ohm, Emf1= 12.2 V and Emf 2= 7.1 V. What is the power delivered to the 10R resistor in W? Note: 1.0857 is the correct answer. Show.