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Mice21 [21]
3 years ago
8

What does the letter b mean

Physics
1 answer:
dexar [7]3 years ago
4 0
More info needed for you question to be answered
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a straight, 2.5-m wire carries a typical household current of 1.5 a (in one direction) at location where the earth's magnetic fi
kotykmax [81]

Answer:

a

The magnitude of the force is  F=2.1*10^{-4}N

The direction is from south to north i.e upward

b

The magnitude of the force is  F=2.1*10^{-4}N

The direction is towards the west

c

The magnitude of the force is  F=2.1*10^{-4}N

the direction of the magnetic field is parallel to the direction of the current  (south to north ) hence the direction in 0 in comparison to the direction of the current

d

From the value of force  we got the answer to this question is No

Explanation:

Generally magnetic force is mathematically represented as

                  F = BIL

Where the B is the magnitude of the magnetic field which is given as

          B= 0.55 guass = \frac{0.55}{10000} = 0.55 *10^{-4}T

               I is the current with a value of I = 1.5A

               L is the length of the wire given as  L =2.5m

Substituting the value

             F =(0.55 *10^ {-4}) (1.5)(2.5)

                F=2.1*10^{-4}N

For the first case where the current is moving from west to east and we are told that the magnetic field is  from south to north the according to Fleming's right hand rule the force(exerted by earths magnetic field ) would be moving from south to north (i.e upward)

For the second case where current is moving vertically upwards the direction of the force is  to the west according to Fleming's right hand rule

 

7 0
3 years ago
Read 2 more answers
What is called the process of finding exact quantity of a substance?​
Tema [17]

Answer:

Measurement is called the process of finding exact quantity of a substances.

7 0
2 years ago
Worth 30 points! PLEASE ANSWER ASAP!!!
Juli2301 [7.4K]
V: there would be no seasons and humanity would suffer
7 0
3 years ago
Why can work be thought of as the transfer of energy? Please help it's physics
deff fn [24]
That is because work requires energy. According to the law of conservation of energy, it cannot be created or destroyed. When doing work, energy change forms and gets transferred to the object until it is released.
for example, when you lift up an object and place it on a higher elevation, you transferred energy to it and gave it potential energy. The potential energy is transformed into kinetic energy when the object falls down, and if it hits a surface, the energy will scatter, vibrating the areas around it and producing sound.
Also, work= force X distance. The energy does not go away, but rather get changed into some other form of energy
7 0
3 years ago
Read 2 more answers
The voltage applied across a given parallel-plate capacitor is doubled. How is the energy stored in the capacitor affected?
ikadub [295]

Answer:

The energy stored in the capacitor quadruples its original value.

Explanation:

The energy stored in a capacitor is given by the equation

U=\frac{1}{2}CV^2

where

C is the capacitance

V is the voltage across the plates

The capacitance, C, depends only on the properties of the capacitor, so it does not change when the voltage applied is changed.

Instead, in this problem the voltage applied is doubled:

V' = 2V

So the new energy stored is

U'=\frac{1}{2}C(2V)^2=4(\frac{1}{2}CV^2)=4U

so, the energy stored has quadrupled.

8 0
3 years ago
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