What is the π-network and T-network??? And some important points..
Hello frnds,.
In this video I will explain you about π-network and T-network ..
And also tell you two important points about star to delta and delta to star conversion..
In this video I will explain you about π-network and T-network ..
And also tell you two important points about star to delta and delta to star conversion..
Thevenin theorem
This video is very helpful for all ..
In this video I discuss about thevenin Theorem with examples..
Which bulb is glow brighter ???
WHICH BULB WILL GLOW BRIGHTER ?
(In Series and Parallel Connection)
When bulbs are connect in series
Example#1
When a 200w, 220v Bulb (B₁) is connected in
series with 100w, 220v (B₂) bulb across a power supply (Vs), which bulb will glow brighter ?
Solⁿ : 100w bulb is glow brighter than 200w bulb.
How,
Solⁿ : 100w bulb is glow brighter than 200w bulb.
How,
Ohm's law
OHM'S LAW
Ohm's law given by German scientist "Georg siman ohm" in 1827. He was a famous physicist.
Definition - According to ohm's law that the current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance.
I = current,
E= voltage,
Ohm's law given by German scientist "Georg siman ohm" in 1827. He was a famous physicist.
Definition - According to ohm's law that the current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance.
Ohm's law formula
Resistor's current I in amp (A) is equal to the resistor's voltage V in volt (V) divided by the resistance R in ohm (Ω).
I = V/R
Where ,I = current,
E= voltage,
R = resistance
Resistance calculation
When we know the value of voltage and current we easily find the value of resistance by using the formula..
R = V/I
Voltage calculation
When we know the value of resistance and current we can easily find the value of voltage by using the formula..
V = IxR
Example#1
If R = 24 ohm and I = 0.25 amps then find the value of voltage (V) ?
Solⁿ :
By using the formula V = IxR we find the voltage.
V = 0.25x24
V = 6 volt
Example #2
A light bulb has a current of 1 amp when 110 volt is applied. what is the resistance of bulb filament ?
Solⁿ :
Here we find the resitance by using R = V/I .
R = V/I
R = 110 / 1
R = 110 ohm
Watch this video to understand the ohms law easily in hindi..
Voltage division rule
VOLTAGE DIVISION RULE
In Electronics, the voltage divider rule is a basic and simple rule to simplify the elctronics circuits. Since in a series circuit, same current flows through each of the given resistors, voltage drop varies directly with its resistance.
Always remember that voltage is different in series circuit.
Now explain the voltage division rule (VDR) by numerical.
EX.- Given question below we see that three resistance 5㏀ ,10㏀ , 7.5㏀ and 45V voltage source are connect in series. Now find the voltage in all resistance ?
Solⁿ-
R₁= 5㏀ , R₂= 10㏀ , R₃= 7.5㏀ , V=45v
V₁ = 9.99V
V₂ = (10 / 5+10+7.5) x 45
V₂ = (10 / 22.5) x 45
V₂ = 19.99V
V₃ = (7.5 / 5+10+7.5) x 45
V₃ = (7.5 / 22.5) x 45
V₃ = 14.99V
For more details to know VOLTAGE DIVISION RULE in HINDI watch this video given below..
In Electronics, the voltage divider rule is a basic and simple rule to simplify the elctronics circuits. Since in a series circuit, same current flows through each of the given resistors, voltage drop varies directly with its resistance.
Always remember that voltage is different in series circuit.
Now explain the voltage division rule (VDR) by numerical.
EX.- Given question below we see that three resistance 5㏀ ,10㏀ , 7.5㏀ and 45V voltage source are connect in series. Now find the voltage in all resistance ?
R₁= 5㏀ , R₂= 10㏀ , R₃= 7.5㏀ , V=45v
BY USING THIS FORMULA WE FIND THE VOLTAGE IN EACH RESISTANCE..
V₁ = (5 / 5+10+7.5) x 45
V₁ = (5 / 22.5) x 45V₁ = 9.99V
V₂ = (10 / 5+10+7.5) x 45
V₂ = (10 / 22.5) x 45
V₂ = 19.99V
V₃ = (7.5 / 5+10+7.5) x 45
V₃ = (7.5 / 22.5) x 45
V₃ = 14.99V
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