25 Answered Questions for the topic Circuits

Circuits Physics

6d

#### What is the voltage drop across R1?

What is the voltage drop across R1 if a series circuit has
a battery with an emf of 1.5 V and an internal resistance of 3.0 Ω
R2 is 8.0 Ω
R3 is 6.0 Ω
Also, how do I calculate the terminal voltage...
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Circuits Physics

6d

#### What is the resistance of R3 and the current of the circuit if this is series?

The voltage provided by the battery is 100 V and the resistance of R1 is 20 Ω, the resistance of R2 is 60 Ω, and the voltage drop across R1 is 10 V.

Circuits Physics

6d

#### A radio operates by means of a 9.0-V battery that supplies it with a 50.0-mA current

A radio operates by means of a 9.0-V battery that supplies it with a 50.0-mA currenta)If the cost of the battery is $2.49 and it lasts for 300.0 h, what is the cost per kWh to operate the radio in...
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7d

#### In the Circuit below the voltmeter V draws negligible current and the internal resistance of the battery is 1.0 ohm

In the Circuit below the voltmeter V draws negligible current and the internal resistance of the battery is 1.0 ohm Please show work! Sorry I could not paste the diagram. v=12.0, there are also 3.0...
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10/30/19

#### Two resistors have resistances R1 and R2. When the resistors are connected in series to a 12.0-V battery, the current from the battery is 2.00 A.

Two resistors have resistances R1 and R2. When the resistors areconnected in series to a 12.0-V battery, the current from the battery is2.00 A. When the resistors are connected in parallel to the...
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Circuits

05/22/18

#### Calculate the resistance when 9.1 A of current flow when connected to a 14.1 volt battery.

need the answer

Circuits

04/14/18

#### how much energy does a 56 ohm light use in 8.1 minutes when hooked up to a 120 V outlet?

I am confused on what steps to take and how to solve this problem.
how much energy does a 56 ohm light use in 8.1 minutes when hooked up to a 120 V outlet?

Circuits

01/14/18

#### find the potential difference when the current is 0.2 amps and the resistance is 30

i just need help finding the andswer to this question could ypu help

Circuits Measurement

08/30/17

#### The three incoming currents at a node in an electrical circuit measure 0.7 amps, 0.68 amps, and 0.47 amps. Two of the three outgoing currents measure 0.8 amps..

...and 0.55 amps. Find the measure of the third outgoing current

#### Capacitors in Combination-Find Each Charge

C1 and C2 are capacitors in parallel. C3 is in series with C12. C1=16.6 microF, C2=8.2 microF, C3=0.3 microF. A 1.52 V battery is connected in this combination. Find the charge stored on each...
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10/30/16

#### effect of current on resistance in series

effect of current on resistance in series graphical explaination

Circuits Power

10/01/16

#### time elapsed in an LR circuit

An LR circuit having time constant of 50 ms is connected with an ideal battery of emf E . prove that the time elapsed before the power dissipated in heat reaches half its maximum value is 61ms

Circuits

07/11/16

#### graph of V and R

A cell of emf E having an internal resistance r is connected to an external resistance R . The potential difference V across the resistance R varies with R as shown in figure by which...
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Circuits

07/11/16

#### total heat produced in capacitance

In the given circuit , all the capacitor are initially uncharged . After closing the switch S1 for a long time suddenly S2 is also closed for a long time . Then show that total heat produced after...
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Circuits

07/11/16

#### readings in ammeter

In the given circuit the ammeter A1 and A2 are ideal and ammeter A3 has a resistance 1.9 x 10-3 . Then show that reading from ammeter are 82/27 , 34/27 & 0 respectively .
The circuit is on...
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Circuits

07/10/16

#### rate at which energy is delivered in a rc circuit

A 3 mega ohm resistor and an uncharged 10^(-6) F capacitor are connected in a single loop circuit with a constant source of 4 volt . Show that at one second after the connection is made , the rate...
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#### New Current..?

A resistor is placed in a circuit. The current in the circuit is 2 amperes and the voltage drop across the resistor is 8 volts. The voltage is then increased to 12 volts. What will be the new...
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05/23/16

#### Current in a resistor? Resistance?

a. What is the current in a 40.0 Ω resistor that has a voltage drop of 14.0 V across it?b. What is the equivalent resistance of a 3.0 Ω resistor, a 6.0 Ω resistor, and a 4.0 Ω resistor connected in...
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#### Parallel Circuits pt. 2

How would a parallel circuit impact four identical light bulbs that were plaed in parallel with a six-volt battery?
Explain what would happen please.

05/04/16

#### Physics Question: Generating Electricity

Electrical appliances plug into the wall with a single plug, but a plug has at least two prongs (sometimes there is a third one, but the minimum is two). Why do you think that this is the case?...
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Circuits

04/13/16

#### a 52 v battery powers a pair of 36 ohm resistors connected in parallel. what is the current flowing through the system?

round to the nearest 10th

#### physics question hard??

Two light circuits with identical lightbulbs. One has two lightbulbs in parallel. Other has them in series.Student 1 says series will glow brighter cuz the same current goes to both...
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#### physics question????

A circuit with a 100 ohm resistor, followed by a parallel wiring with two 100 ohm resistors. What happens to the potential difference along a parallel resistor if the other one is removed.

09/06/14

#### Analyzing a curcuit

I've been taking an online course in electronics (basic), and I've been having a hard time solving this circuit, pic: http://bit.ly/1rlDP1V The goal is to find value of v3, i5, power dissipated...
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07/06/14

#### Differential Equations circuit homework problem

Attached is the problem from my text book. I'm confused about what I'm actually solving and how to use what I know. I know that Current for the inductor is given by the equation di/dt = v/L and the...
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