All categories

3 years ago

Science help!

Physics

2 answers:

Irina18 [472]3 years ago

5 0

1. The resistor is located at point D.

A resistor is an element of a circuit that opposes to the flow of current through it: the value of its resistance (R) tells how much the resistor opposes to the flow of current, and the resistance is related to the voltage in the circuit (V) and the current (I) by the Ohm's law:

$V=IR$

Resistance is measured in Ohm ( $\Omega$ ), and a resistor is usually represented with a zig-zag line as the one at point D.

2. The switch is located at point B.

A switch is an element of the circuit that can be switched on and off, opening and closing the circuit, therefore allowing or not the flow of current through it. When the switch is open, no current flows; when it is closed, the current can flow through the circuit.

The symbol of a switch is represented at point B.

Anton [14]3 years ago

3 0

1). The resistor is located at the point D in the given diagram.

2). The switch is located at the point B in the given diagram.

Explanation:

A resistor in a circuit is a component that opposes the flow of current through the circuit. The resistance is the measurement of the hindrance produced by the conductor in the path of the current flowing through it.

A switch on the other hand is another important part of a complete circuit. A switch is a component which is used to switch on an off the current flowing through the circuit.

The other important components of a complete circuit are the battery, connecting wires etc. The battery is the source of power that runs the complete circuit and connecting wires are the medium that allow the flow of current from one end of the circuit to the other end.

The symbols of the various components are shown in the figure attached below:

Therefore,

Part (1):

The resistor is located at the point D in the given diagram.

Part 2):

The switch is located at the point B in the given diagram

Learn More:

1. The amount of kinetic energy an object has depends on its brainly.com/question/137098

2. Calculate the wavelength of an electron moving at 3.66 × 10^6 m/s brainly.com/question/1979815

3. Compare the surface area–to–volume ratios of Earth and Venus brainly.com/question/7227193

Answer Details:

Grade: High School

Subject: Physics

Chapter: Electricity

Keywords: Resistor, switch, complete circuit, hindrance, current, on and off, point D, point B, according to the diagram, resistor located, components.

You might be interested in

How do you find the velocity of an object?

Scorpion4ik [409]

<span>Basically just divide the change in position by the change in time. </span>

3 0

3 years ago

A long cylindrical capacitor is made of a central wire of radius a = 2.50 mm surrounded by a conducting shell of radius b = 7.50

asambeis [7]

Answer:

The capacitance per unit length is $5.06\times10^{-11}\ F/m$

(b) is correct option.

Explanation:

Given that,

Radius a= 2.50 mm

Radius b=7.50 mm

Dielectric constant = 3.68

Potential difference = 120 V

We need to calculate charge per length for the capacitance

Using formula of charge per length

$\lambda=\dfrac{4\pi\epsilon_{0}\Delta V}{2 ln(\dfrac{r_{2}}{r_{1}})}$

Put the value into the formula

$\lambda=\dfrac{120}{9\times10^{9}\times2 ln(\dfrac{7.50\times10^{-3}}{2.50\times10^{-3}})}$

$\lambda=6.068\times10^{-9}\ C/m$

We know that,

$\lambda=\dfrac{Q}{L}$

We need to calculate the capacitance per unit length

Using formula of capacitance per unit length

$C=\dfrac{\dfrac{Q}{L}}{\Delta V}$

$C=\dfrac{6.068\times10^{-9}}{120}$

$C=5.06\times10^{-11}\ F/m$

Hence, The capacitance per unit length is $5.06\times10^{-11}\ F/m$

7 0

3 years ago

The newest generation of smart phone uses three different batteries connected in a series simultaneously to extend battery life

azamat

Answer:

7.2 V

Explanation:

The three batteries are connected in series to the terminals of the phone: it means that they are connected along the same branch, so the current flowing through them is the same.

This also means that the potential difference across the phone will be equal to the sum of the voltages provided by each battery.

Here, the voltage provided by each battery is

V = 2.4 V

So, the overall voltage will be

V = 2.4 V + 2.4 V + 2.4 V = 7.2 V

8 0

3 years ago

A coil with an inductance of 2.3 H and a resistance of 14 Ω is suddenly connected to an ideal battery with ε = 100 V. At 0.13 s

klemol [59]

Given Information:

Resistance = R = 14 Ω

Inductance = L = 2.3 H