A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light bulb in 2.6 min? Select one: a. 31.20 b. 23.40 C. 46.80 d. 39.00 e. 28.60

Q: How much voltage does a light bulb receive if 5.00 C delivers a total of 250 J of energy? a. 1250 J…

A: Given, Charge Q = 5 C Total energy E = 250 J   We know the expression for voltage is…

Q: 7. A resistor connected to a 12.0 V battery dissipates 2.0 W. If the battery is replaced by a 6.0 V…

A:

Q: Calculate the rate of the flashlight’s energy consumption. Suppose a flashlight has 6.8 × 102 C…

A: Given data:  Charge (q) = 6.8×102 C Time (t) = 0.35 h Voltage (V) = 3.00 V Required: Power (P)

Q: If 5.0 × 1021 electrons pass through a 30.1 Q resistor in 10 min, what is the potential difference…

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Q: A power supply with a DC voltage of 5.0 V discharges 500.0 J of energy through a 25 Ohm resistor.…

A: The current through the resistor can be calculated using ohms law.

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Given, P= 30 W V= 120 V t= 2.1min = 2.1*60= 126 sec

Q: Q4. In the figure R = 2 kn, how much current flows through the 12 V battery? a) 2 mA b) 3 mA 4 mA 6…

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Q: Two resistors with values of 6.0 Q and 12 Q are connected in parallel. This combination is connected…

A: Given : R1 = 6.0 Ω R2 = 12 Ω R3 = 8.0 Ω V = 6.0 V

Q: A 100 watt bulb is rated for use in a 120 volt line. During a brownout the actual voltage drops to…

A:

Q: How long will it take a charged 80 µF capacitor to lose 21% of its initial energy when it is allowed…

A:

Q: 18. A lµF capacitor is charged using a constant current of 10 uA for 20 s. What is the energy…

A: Here given that a 1 microfarad capacitor is charged using a constant current of 10μA for 20 sec. We…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: P = V*I  30 = 120* I  I = 30/ 120  I = 0.25 A

Q: How long will it take a charged 80 µF capacitor to lose 37% of its initial energy when it is allowed…

A: Given R = 45 ohm C = 80 micro F We have to find out the time that will take by this capacitor to…

Q: An electric device delivers a current of 9.1 A for 5.7 seconds. How many electrons flow through this…

A:

Q: If 5.0 × 1021 electrons pass through a 18.5 Q resistor in 10 min, what is the potential difference…

A: Option A is the right answer  24.67 V

Q: An ideal battery has an emf of 12 V. If it is connected to a circuit and creates a current of 4.0 A,…

A: Givenemf of an ideal battery = 12 V Current through a circuit = 4.0 A We have to calculate the…

Q: A resistor connected to a 3.0 V battery dissipates 1.0 W. If the battery is replaced by a 6.0 V…

A:

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A:

Q: An electric device draws 6.5 A at 240 V. If the voltage drops by 15%, what will be the new current?…

A: Given: Current, I=6.5 A Potential, V=240 V Voltage drop=15%=0.15  We know, OHM'S LAW: V=IR At…

Q: A resistor is connected to a 3.0 V battery; the power dissipated in the resistor is 1.0 W. The…

A:

Q: 34 V O-9.8 V 11₂2 O,22 V O-2.2 V w ww + E The ammeter shown in the figure reads 4.4 A, R1 = 7.0 2,…

A:

Q: A light bulb has a resistance of 2402, when operating at a voltage of 120 V. What is the current in…

A: Required :: The current in the bulb, i .

Q: 19. A circuit consists of a 100 v battery connected in series to a 20 resistor and two 2 F…

A:

Q: 2os2 3052 352 652 552 (2A

A:

Q: Lightbulb A is rated at 120 V and 40 W for household applications. Lightbulb B is rated at 12 V and…

A: Here, For Bulb A , V=120 v P=40w So I =P/V = 40 / 120 = 0.33 A For Bulb B, V =12 v P =40w So I =…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Write a given values of this question. P=30WV=120Voltt=1min=1×60=60sec

Q: A 20 V battery is connected to a resistor. Neglecting the internal resistance of the battery, the…

A: Voltage of the battery, Vs=20 V Power delivered to the resistor, P=10 W

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Here given the light operated at 30  W at 120 V. We have to calculate the amount of charges that…

Q: What power is dissipated in a circuit through which 0.12 A flows across a potential drop of 3.0 V?…

A: The power dissipated in a circuit is given by: P= VIV = potential differenceI = currentgiven:V = 3VI…

Q: A light bulb has a resistance of 2400, when operating at a voltage of 120 V. What is the current in…

A: By ohm's law the relation between voltage, current and resistance is given by  V = IR          Where…

Q: A certain person will experience a mild electric shock when the current between two fingers exceeds…

A:

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A:

Q: 22. An 8 ohm resistor and a 6 ohm resistor are connected in series with a battery. The potential…

A:

Q: How much energy is dissipated as heat during a two-minute time interval by a 1.4 kn resistor which…

A:

Q: E33. One battery supplies 30mW to an 8? loudspeaker. How many electrons leave the negative terminal…

A: Given : Power (P) = 30 mW = 30 x 10-3 W Resistance (R) = 8 Ω Time (t) = 1 min = 60 seconds

Q: What power is dissipated in a circuit through which 0.12 A flows across a potential drop of 3.0 V?…

A: The question can be solved as follows

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A:

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.