Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
The Coulomb law is an implication of which law?
The Coulomb law is an implication of Gauss's law.
The Coulomb law is an implication of Gauss’s law.
See lessThe sharing of a medium and its link by two or more devices is called _________
Network sharing
Network sharing
See lessFind the force between two charges when they are brought in contact and separated by 4cm apart, charges are 2nC and -1nC, in μN.
To find the force between two charges when they are separated by a distance, we can use Coulomb's Law, which is given by the formula:[F = k frac{|q_1 q_2|}{r^2}]where:- ( F ) is the force between the charges,- ( k ) is Coulomb's constant (( 8.99 times 10^9 , text{N m}^2/text{C}^2 )),- ( q_1 ) and (Read more
To find the force between two charges when they are separated by a distance, we can use Coulomb’s Law, which is given by the formula:
[
F = k frac{|q_1 q_2|}{r^2}
]
where:
– ( F ) is the force between the charges,
– ( k ) is Coulomb’s constant (( 8.99 times 10^9 , text{N m}^2/text{C}^2 )),
– ( q_1 ) and ( q_2 ) are the charges,
– ( r ) is the distance between the charges.
Given:
– ( q_1 = 2 , text{nC} = 2 times 10^{-9} , text{C} )
– ( q_2 = -1 , text{nC} = -1 times 10^{-9} , text{C} )
– ( r = 4 , text{cm} = 0.04 , text{m} )
Substituting these values into the formula:
[
F = (8.99 times 10^9) frac{|(2 times 10^{-9})(-1 times 10^{-9})|}{(0.04)^2}
]
Calculating the numerator:
[
|(
See lessMultiplexing is used in _______
Multiplexing is used in telecommunications and data communication to combine multiple signals into one medium, allowing for more efficient transmission of data over a single channel.
Multiplexing is used in telecommunications and data communication to combine multiple signals into one medium, allowing for more efficient transmission of data over a single channel.
See lessASCII and EBCDIC are the popular character coding systems. What does ASCII stand for?
ASCII stands for American Standard Code for Information Interchange.
ASCII stands for American Standard Code for Information Interchange.
See lessFind the force of interaction between 60 stat coulomb and 37.5 stat coulomb spaced 7.5cm apart in transformer oil(εr=2.2) in 10-4 N,
To find the force of interaction between two point charges in a medium, we can use Coulomb's Law in the form:[F = frac{1}{4 pi epsilon} cdot frac{|q_1 q_2|}{r^2}]where:- ( F ) is the force between the charges,- ( epsilon ) is the permittivity of the medium,- ( q_1 ) and ( q_2 ) are the magnitudes ofRead more
To find the force of interaction between two point charges in a medium, we can use Coulomb’s Law in the form:
[
F = frac{1}{4 pi epsilon} cdot frac{|q_1 q_2|}{r^2}
]
where:
– ( F ) is the force between the charges,
– ( epsilon ) is the permittivity of the medium,
– ( q_1 ) and ( q_2 ) are the magnitudes of the charges,
– ( r ) is the distance between the charges.
In this case, stat coulombs need to be converted to SI units for practical calculation. The conversion is:
1 stat coulomb = ( 3.33564 times 10^{-10} ) C.
So:
– ( q_1 = 60 text{ stat coulombs} = 60 times 3.33564 times 10^{-10} ) C,
– ( q_2 = 37.5 text{ stat coulombs} = 37.5 times 3.33564 times 10^{-10} ) C.
The distance is given as 7.5 cm, which is:
[
r = 7.5 text{ cm} = 0.075 text{ m}
]
Next, to find the permittivity ( epsilon ) for the
See lessFind the force between 2C and -1C separated by a distance 1m in air(in newton).
To find the force between two charges, we can use Coulomb's law, which is given by the formula:[F = k frac{|q_1 q_2|}{r^2}]Where:- (F) is the force between the charges,- (k) is Coulomb's constant ((8.99 times 10^9 , text{N m}^2/text{C}^2)),- (q_1) and (q_2) are the amounts of the charges,- (r) is thRead more
To find the force between two charges, we can use Coulomb’s law, which is given by the formula:
[
F = k frac{|q_1 q_2|}{r^2}
]
Where:
– (F) is the force between the charges,
– (k) is Coulomb’s constant ((8.99 times 10^9 , text{N m}^2/text{C}^2)),
– (q_1) and (q_2) are the amounts of the charges,
– (r) is the distance separating the charges.
Given:
– (q_1 = 2 , text{C}),
– (q_2 = -1 , text{C}),
– (r = 1 , text{m}).
Substituting these values into the formula:
[
F = 8.99 times 10^9 frac{|2 times (-1)|}{1^2}
]
[
F = 8.99 times 10^9 frac{2}{1}
]
[
F = 8.99 times 10^9 times 2
]
[
F = 17.98 times 10^9 , text{N}
]
Since the charges have opposite signs, the force will be attractive.
Therefore
See lessFloppy disks typically in diameter
Floppy disks typically come in diameters of 3.5 inches and 5.25 inches.
Floppy disks typically come in diameters of 3.5 inches and 5.25 inches.
See lessWhy is the three phase reluctance motor preferred over single phase reluctance motor?
The three-phase reluctance motor is generally preferred over a single-phase reluctance motor for several reasons: 1. Higher Efficiency: Three-phase motors typically operate more efficiently than single-phase motors, leading to reduced energy consumption. 2. Better Power Factor: Three-phase motors haRead more
The three-phase reluctance motor is generally preferred over a single-phase reluctance motor for several reasons:
1. Higher Efficiency: Three-phase motors typically operate more efficiently than single-phase motors, leading to reduced energy consumption.
2. Better Power Factor: Three-phase motors have improved power factor characteristics, which results in better performance in industrial applications.
3. Higher Torque and Performance: Three-phase reluctance motors can generate higher torque and better performance, especially under varying load conditions.
4. Reduced Vibration and Noise: Due to the continuous power delivery of three-phase systems, these motors operate with lower vibration and noise levels compared to single-phase motors.
5. Improved Starting Torque: Three-phase motors have better starting torque performance, making them more suitable for heavy-load applications.
6. Load Balancing: Three-phase systems can balance the load across three phases, reducing the risk of overload and increasing the lifespan of the motor.
7. Simpler Control: The control of three-phase motors can be more straightforward in some applications, allowing for easier integration into complex motor control systems.
8. Compact Design: They can achieve higher power outputs within a smaller physical size compared to single-phase motors for similar applications.
These advantages make three-phase reluctance motors more suitable for industrial and commercial applications that require reliable and efficient operation.
See lessCoulomb is the unit of which quantity?
Coulomb is the unit of electric charge.
Coulomb is the unit of electric charge.
See less