Question

In: Physics

If you increase the potential difference or electromotive force across a resistance in a circuit the...

If you increase the potential difference or electromotive force across a resistance in a circuit the current flowing through that device will___.

Question 8 options:

increase.

decrease.

remain the same.

get scared and go home..

In a parallel circuit, if one bulb blows, the total current will ____________.

Question 12 options:

increase

decrease

remain the same

A 10 ohms, 22 ohms, and 100 ohms resistor are hooked in series. What is the total resistance?

Question 18 options:

132 volts

132 ohms

0.16 ohms

6.5 ohms

Three different size lights are running off a low voltage system. The resistance of the three lights are R1 =3 ohms, R2 = 9 ohms, and R3 = 9 ohms. They are all connected in parallel with a 5.0 V battery. The internal resistance of the battery is negligible.

What is the current through R1?

Question 20 options:

	1.67 A
	0.24 A
	9 A
	2.78 A

Expert Solution

genius_generous answered 1 year ago

What is Electromotive force and potential difference.

What is Electromotive force and potential difference and write it's units.

What is the difference between an emf (Electromotive force) and a potential difference?

علي غسان اتصالات اسيا: 1. The source in the circuit provides the circuit with electromotive force....

علي غسان اتصالات اسيا: 1. The source in the circuit provides the circuit with electromotive force. * Current moves from a point of high potential energy to a point of low potential Inert gas white, glowing, or luminous with intense heat 4. Electronic equipment and transformers may also use a special electrical grade of paper. * 5. In solutions and gases, the electric current is carried by the movements of electrons. * 6. Absolute zero is the lowest temperature theoretically...

The figure shows a circuit containing an electromotive force, a capacitor with a capacitance of C...

The figure shows a circuit containing an electromotive force, a capacitor with a capacitance of C farads (F), and a resistor with a resistance of R ohms (Ω). The voltage drop across the capacitor is Q/C, where Q is the charge (in coulombs, C), so in this case Kirchhoff's Law gives RI + Q/C =E(t) But I = dQ/dt, so we have R(dQ/dt) + 1/C (Q) = E(t) Suppose the resistance is 10 Ω, the capacitance is 0.05 F, and...

For the circuit shown in the figure, find the current through and the potential difference across...

For the circuit shown in the figure, find the current through and the potential difference across each resistor. For the circuit shown in the figure, find the current through and the potential difference across each resistor.

A constant voltageis applied across a circuit. If the resistance in the circuit isdoubled,...

A constant voltage is applied across a circuit. If the resistance in the circuit is doubled, what is the effect on the power dissipated by the circuit?The power dissipated is reduced by a factor of 4.The power dissipated is reduced by a factor of 2.The power dissipated is doubled.The power dissipated remains constant.The power dissipated is quadrupled.If the resistance in a circuit connected to a constant current is halved, how is the voltage in the circuit affected?The voltage is reduced...

Consider the three basic quantities of a circuit: voltage (potential difference), current, and resistance. In general...

Consider the three basic quantities of a circuit: voltage (potential difference), current, and resistance. In general terms, describe each one in your own words and its basic characteristic/property, and can you do an analogy of these quantities with a fluid system, say a stream of water? Further, since many of you are in the medical field, can you relate a basic circuit and its components to a system of the body, maybe the circulatory system? If, what is the analogy...

For the circuit shown in the figure, find the current through and the potential difference across each resistor.

For the circuit shown in the figure, find the current through and the potential difference across each resistor. Part A Find the current through 3 Ω resistor. Part B Find the potential difference across 3 Ω resistor.

Part A If the voltage across a circuit of constant resistance is doubled, how is the...

Part A If the voltage across a circuit of constant resistance is doubled, how is the current in the circuit affected? If the voltage across a circuit of constant resistance is doubled, how is the current in the circuit affected? 1-The current is reduced by a factor of 4. 2-The current is doubled. 3- The current is reduced by a factor of 2. 4-The current remains constant. 5-The current is quadrupled.

Respond to the following: In your own words, explain direct current, resistance, Ohm's Law, electromotive force,...

Respond to the following: In your own words, explain direct current, resistance, Ohm's Law, electromotive force, and resistors in series and in parallel. Also give examples.