28. Two lightbulbs operate at 120 V, but one has a power rating of 100 W while the other has a power rating of 60 W. Which one has the greater resistance? the 100 W bulb the 60 W bulb both have the same this has nothing to do with resistance Filament Connecting wires Insulator External connections

Q: A current flows in a circuit that consists of a lightbulb and a battery, as in 22.21b of this…

A:

Q: Choose the appropriate units for the given descriptions. O unit of current O unit of "potential" =…

A: Current: Electric current is a stream of charged particles. Unit: Ampere(A) Potential:  Energy per…

Q: A lamp draws a current of 0.50 A when it is connected to a 120 V source. What is the resistance of…

A:

Q: 37. What is the resistance of a solar dryer typically designed to operate on a 120 V circuit at a…

A: Write the given data. P=1000 WV=120 V

Q: A galvanometer has an internal resistance of 100 ohms and measures only 250HA when it is full scale…

A: Internal resistance of galvanometer is Rg = 100 ohms Current passing through the galvanometer is…

Q: A car battery has an emf of 12.0V. You connect a light bulb across its terminals that have a…

A: Emf (V) = 12 V Resistance (R) = 12 ohm

Q: Two lamps, one rated at 100 W at 220 V and the other 60 W at 220 V are connected in parallel to a…

A: Given  P1 = 60 W at 220 V P2 = 100 W at 220 V Appleid voltage (V) = 220 V

Q: 19. A 502 resistor is wired in parallel with a 1002 resistor. The two are connected to a 10V battery…

A:

Q: The role or purpose of the battery in a circuit is to Choose three. transform energy from electrical…

A: Given: What is the role or purpose of battery in the circuit ?

Q: 9. When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the…

A:

Q: Two lightbulbs are each connected to a voltage of 120 V. One has a power of 25 W, the other 100 W.…

A: Given data: Two lightbulbs are each connected to the voltage of, V= 120 V The power of the first…

Q: A 3-way light bulb for a 110-V lamp has two different filaments and three different power ratings.…

A:

Q: The newest generation of smartphone uses three different batteries connected in series…

A: When cells are linked in series to make a battery, the net potential difference between the…

Q: 11. A resistor with a colour strips: brown, black, red, gold will have a value of * O 100 Ohms O 1k…

A:

Q: Which of the following statements are true about an electric resistance? List all that apply. The…

A: Given:  Some facts about the resistance

Q: Of the following combination of units, the one that is not equal to the "watt" is O ampere-volt O…

A: The one is not equal to the "watt" is ohm squared /volt. Therefore, the correct option is C

Q: 7. In a parallel circuit, each circuit element has the same 8. In a series circuit, the largest…

A: 7.In  all parallel devices ,the voltage is the same since we have wired them together with wires…

Q: The current in a circuit varies inversely with its resistance measured in ohms. When the current in…

A:

Q: 8. A household water heater has a resistance of 30 Ohm. The operating voltage is 220 V. Find the…

A: Ohm's law states that V=iR Where, V = voltage i = current R= resistance

Q: You have a friend who is an avid woodworker and they are trying to determine the voltage on the…

A: The efficiency of a machine is the ratio of the power output to the power input.…

Q: 19. Kirchhoff s second law is based on the law of conservation of b. energy c. momentum d. mass a.…

A: 19). Kirchhoff's Second law refers to the voltage law which is based on energy conservation. It is…

Q: 5 equal resistors connected in series have a total resistance of 250 Q. The resistance of each…

A:

Q: 22. How many 100 W bulbs may be safely used on a 220 V supply with 5 A fuse? (a) 5 (c) 11 (b) 8 (d)…

A:

Q: Two 100 ohm resistor are connected in parallel and in series to 24 V battery  a. Draw the circuit…

A: Given data The resistor is given as R=100 Ω. The potential of the battery is given as V = 24 V. a)…

Q: When a light bulb is connected across the terminals of a battery, the battery delivers 21.1 W of…

A: Given data: Power delivered by battery (P) = 21.1 W Voltage (V) = 10.0 V Internal resistance (R) =…

Q: 5. A 220V 600-watt electric coffee maker is used to make a total of 12 cups of coffee in 45 minutes.…

A:

Q: When a 60-watt light bulb is connected to a 120-volt source the current in the light bulb is…

A: Given data:  Power (P) = 60 W Voltage (V) = 120 V Required: Current (I)

Q: The circuit below contains three 100-W light bulbs and a capacitor. The emf ε = 110V. At the instant…

A:

Q: A strand of Christmas lights is a part of an electrical circuit. The strand of lights is plugged…

A: The Christmas lights will glow when the circuit is closed and switched is on.

Q: While repairing an electric bulb socket, an electrician gets a mild shock when a current of. 0.005 A…

A: Given data The current that passes through the electrician is given as Is = 0.005 A.  The current…

Q: The household circuit operating at 120 V has a 30 A circuit breaker. 1500 W iron, 2000 W fryer and…

A: Maximum current that could pass = 30 Ampere  Power of fryer= 2000 Watt Power of iron = 1500 watt to…

Q: The headlight of a car with a 12V electrical system are 40W each, the tail lights are 6.0Weach and…

A: Part-1: Given: The power consumed by the headlight is 40 W each. The power consumed by the tail is 6…

Q: In the following circuit find: a) All of the currents and voltages. b) The power dissipated in the…

A: The given resistances are, The voltage of battery is V=15 V.

Q: Two light bulbs both operate from 120 V. One has power of 25 W and the other 100 W. Which bulb has…

A: We know that power  P= V2/R Where R is resistance and V is voltage .

Q: 13 Power transmission lines have transformers between high voltage supply lines and consumers…

A: For long distance transmission wire  electrical utilities require high voltage. For home high…

Q: The headlights of a moving car require about 10 A from the 12 V alternator, which is driven by the…

A:

Q: 59. A physics student is given three 12-ohm resistors with instructions to create the circuit that…

A:

Q: 8. Electrons in AC keep changing its direction. 9. Electrons in DC is stationary. 10. AC has no…

A: AC, also called alternating current, is defined as the current that shows both magnitude and…

Q: Distinguish between emf and potential difference as used in electricity.

A: Electromotive force emf: A difference in potential that tends to give rise to an electric current.…

Q: Draw an electric circuit of a battery made up of four 1.5 V cells, one open switch  (that controls…

A:

Q: Which describes the function of a voltmeter? * This device can measure the same electric current…

A: Given: The function of voltmeter.

Q: It is a law which states that the resistance is a constant ratio of the potential difference to the…

A: According to ohms law voltage is equal to the product of current and the resistance of the circuit.…

Q: wo resistors connected in series have an equivalent resistance of 620 Ω. When they are connected in…

A: Given: The equivalent resistance for the series connection is 620 Ω. The equivalent resistance of…

Q: household appliances in her home and records the data in the table below. Voltage Used (V) Number of…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Two cities are 150 km apart. Electric power is sent from one city to another city through copper…

A: SOlution: Given that distance d = 150 km potential drop Vd = 8 v/km resistanc R = 0.5 Ohm/km

Q: An electric heater which is connected to a 220 V supply line has two resistance coils A and B of 24…

A: Given V=220 V RA = RB = 24 ohm (a) Current drawn when only coil A is used: I = V/RA = 220/24 =9.16…

Q: A cell has a terminal voltage of 50.0 V for a current of 10.0 A, and 54 V for a current of 6.0 A.…

A: Given: The terminal voltage is 50.0 V for a current of 10.0 A. The terminal voltage is 54.0 V for a…

Q: An overhead high voltage (4.0x105 V) power transmission line delivers electrical energy from a…

A: Given:  V = 4 x 105 V  P  = 1500 x 106 W

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.