Which switch or switches must be closed to make lamp B light?

Q: Draw a series circuit with 1 light bulb and a motor running off a 3V battery. Add one open switch.

A: To draw a series circuit , consisting of : 1 Light bulb  1 motor A 3V battery 1 open switch

Q: 2 3 4 7. Using the diagram to the right, calculate the total resistance of the circuit, the current…

A: Ohm Law  V=IR and parallel circuit net resistance formula

Q: In the circuit shown here, if switch S is left open, then which light bulb will be brightest?

A: Any resistor in a circuit that has a voltage drop across it dissipates electrical power. This…

Q: Solve the following numerical problem:  A 44-Ohm resistor is in series with a 24-V motor that is…

A: Resistance,(R)=44Ω -----(1) [Given] Motor voltage,(VM)=24 V-----(2) [Given] Circuit current,(I)=300…

Q: (3) What happens when the switch is closed in the figure shown below? (answer: bulb 1 goes…

A: (1) What happens when the switch is closed in the figure below. (2) What happens when the switch is…

Q: There are 2 lights connected in parallel connection to 13 volts battery each having the resistance…

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Q: The current through two identical light bulbs connected in series is 0.25 A. The voltage across both…

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Q: Describe three different ways in which you can add one more wire to this arrangement to get the bulb…

A: the current will flow through the bulb only when the path of current is complete that is the circuit…

Q: Two bulbs are marked 120V, 144 W and a 120 V, 72 W respectively are connected in series across a 240…

A: Given:  For first bulb: V = 120 V , P = 144 W For second bulb: V = 120 V,  P = 72 W  Voltage of…

Q: An unknown resistor uses 1.5 W when connected to a 9-volt battery. When connected to a 4-volt…

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Q: 1. Use the Conventional way of solving Parallel-Series Circuit

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Q: Two 1.5 volt batteries in series gives you what?

A: Given : Two 1.5 Volts batteries. Required : Output

Q: What is the current through the battery when the switch is open? 20 Ω 40 Ω . 10 V 60 Ω m 10 Ω

A: The problem is based on the concept of Ohm's law. Ohm's law states that the voltage across a…

Q: A lamp draws 1.2 A while dissipating 144 W.  What is the resistance in the bulb? Group of answer…

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Q: Shown are two identical lightbulbs connected in series. Which bulb is brighter: A or B? Or are they…

A: Two identical bulbs

Q: What is the current in a 15.0-W light bulb when connected to a 131-V emf?

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Q: A lamp fixture is composed of a choke (ballast), a fluorescent tube, a glow lamp starter, a pair of…

A: An electric circuit is a systematic arrangement of electric components so that a path for the flow…

Q: When the switch S is open in the circuit shown below, the reading on the ammeter A is 3.75A.

A: current = V/R

Q: In the diagrams, all light bulbs and all emf devices are identical. In which circuit (A, B, C, D, E)…

A: Given There are different circuit is shown in the figure. We have to choose those option in which…

Q: While cooking dinner, Dinah’s oven uses a 134 V line and draws 7 A of current when heated to its…

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Q: An automatic switch that opens when the current reaches a set value is called a: surge suppressor O…

A: A surge suppressor is a device, which protects electrical devices from voltage spikes in AC current.…

Q: In a simple DC circuit for a flashlight, a 1.5 V battery powers its light bulb, which has a…

A: Given data: Voltage (V) = 1.5 V Resistance (R) = 2 ohms Required: Current (I)

Q: 100 3. How much current flows through the bottom wire in the figure on the right, and in which…

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Q: A chipmunk scampers about collecting in its cheeks safflower seeds that the birds dropped from the…

A: Given: The position vector r1x= 2.91 m The position vector r1y= -1.21 m The position vector r2x=…

Q: Find the largest number of bulbs that can be connected in parallel to a 120 V battery before the…

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Q: How much power is dissipated in a  8.85 Ohm resistor when 4.2 Amps of current run through it?

A: The expression for the required power dissipated is,

Q: 20 Dielectric losses may occur due to: 1. conductivity 2. polarisation 3. radioactivity 4.…

A: The primary reason behind the Dielectric losses are:: 1) Conductivity  2) Polarisation

Q: Alternating current is current that changes direction in a regular pattern. O True O False

A: There are two major types of currents.  1. Alternating current ( AC)  2. Direct current ( DC)

Q: An electrical circuit has a 5.31-V battery wired to two resistors, 1.84 Ohms and 6.90 Ohms, in…

A: Given- > Voltage(V)= 5.31v  > Resistors in parallel-          R1 = 1.84Ω          R2 = 6.90Ω…

Q: A coffee cup immersion heater utilizes a heating coil with a resistance of 8.5 Ω. Determine the…

A: Given data: Resistance, R=8.5 Ω The voltage, V=110 V According to Ohm's law, V=IR⇒I=VR Substituting…

Q: In the circuit shown, which bulb(s) would be lit if the switch was open? R₁ O Only R1 O Only R2 R₂ S…

A: Given :

Q: A galvanometer has a coil resistance of 50 Q and a full-scale current of 1 mA. What resistance…

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Q: power was used

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Q: 1. An arrow 2.00 cm long is located 8.00 cm to the left of a thin lens that has a focal length 10.0…

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Q: The electric power of a lamp that carries 2 A at 120 V is   Question 1 options:   2 watts.   240…

A: The current through the lamp, I=2A The voltage across the lamp, V=120 V

Q: A flashlight bulb is rated 2.0 V, 0.23 A. How much power is required to operate the light bulb?…

A: Power is,