Determine the following from an electric circuit a) Effective resistance of 8 ohm resistors combination b) Flowing current via 4 ohm resistor

In order to determine the following from the electric circuit, we have to schematically represent it first.

Electric Circuit

Effective Resistance of 8-ohm Resistors Combination

There are two 8Ω resistors that are parallelly connected with one another, therefore their effective resistance equals:

⇒ 1/R_P = 1/8 + 1/R

⇒ 1/R_P = 1/4

⇒ R_P = 4Ω

The Total Resistance in the given Circuit

As per the question, the following can be shown:

⇒ R = 4Ω + R_P

⇒ R = 4Ω + 4Ω

⇒ R = 8Ω

Current Passing Via the Circuit

The current that passes through the circuit

⇒ I = V/R

⇒ I = 8/8

⇒ I = 1 A

Hence, the current that passes through a 4Ω resistor is 1A. Since 4Ω and R_p are connected in series, the same current flows through them.

Potential Difference across 4Ω resistor

⇒ V = I × R

⇒ V = 1 × 4

⇒ V = 4V

The Dissipated Power in a 4Ω Resistor

⇒ P = I²R

⇒ P = 1²× 4

⇒ P = 4 W

Difference, if any, in Ammeter Readings

Both A₁ and A₂ demonstrate the same reading due to the fact that current remains same in series combination.

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Determine the following from an electric circuit a) Effective resistance of 8 ohm resistors combination b) Flowing current via 4 ohm resistor

Effective Resistance of 8-ohm Resistors Combination

The Total Resistance in the given Circuit

Current Passing Via the Circuit

Potential Difference across 4Ω resistor

The Dissipated Power in a 4Ω Resistor

Difference, if any, in Ammeter Readings

Related Questions

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1.
Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

2.
If Bohr’s quantization postulate (angular momentum \( = \frac{nh}{2\pi} \)) is a basic law of nature, it should be equally valid for the case of planetary motion also. Why, then, do we never speak of quantization of orbits of planets around the Sun? Explain.

3.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

4.
What is displacement current (\( i_d \))? Considering the case of charging of a capacitor, show that \( i_d = \varepsilon_0 \frac{d\Phi_E}{dt} \). What is the value of \( i_d \) for a conductor across which a constant voltage is applied?

6.
Photoemission of electrons occurs from a metal (\( \phi_0 = 1.96 \, \text{eV} \)) when light of frequency \( 6.4 \times 10^{14} \, \text{Hz} \) is incident on it. Calculate: Energy of a photon in the incident light, The maximum kinetic energy of the emitted electrons, and The stopping potential.

Similar Physics Concepts

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Determine the following from an electric circuit a) Effective resistance of 8 ohm resistors combination b) Flowing current via 4 ohm resistor

Effective Resistance of 8-ohm Resistors Combination

The Total Resistance in the given Circuit

Current Passing Via the Circuit

Potential Difference across 4Ω resistor

The Dissipated Power in a 4Ω Resistor

Difference, if any, in Ammeter Readings

Related Questions

CBSE CLASS XII Related Questions

1.Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

2. If Bohr’s quantization postulate (angular momentum \( = \frac{nh}{2\pi} \)) is a basic law of nature, it should be equally valid for the case of planetary motion also. Why, then, do we never speak of quantization of orbits of planets around the Sun? Explain.

3.Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

4.What is displacement current (\( i_d \))? Considering the case of charging of a capacitor, show that \( i_d = \varepsilon_0 \frac{d\Phi_E}{dt} \). What is the value of \( i_d \) for a conductor across which a constant voltage is applied?

6.Photoemission of electrons occurs from a metal (\( \phi_0 = 1.96 \, \text{eV} \)) when light of frequency \( 6.4 \times 10^{14} \, \text{Hz} \) is incident on it. Calculate: Energy of a photon in the incident light, The maximum kinetic energy of the emitted electrons, and The stopping potential.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

2.
If Bohr’s quantization postulate (angular momentum \( = \frac{nh}{2\pi} \)) is a basic law of nature, it should be equally valid for the case of planetary motion also. Why, then, do we never speak of quantization of orbits of planets around the Sun? Explain.

3.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

4.
What is displacement current (\( i_d \))? Considering the case of charging of a capacitor, show that \( i_d = \varepsilon_0 \frac{d\Phi_E}{dt} \). What is the value of \( i_d \) for a conductor across which a constant voltage is applied?

6.
Photoemission of electrons occurs from a metal (\( \phi_0 = 1.96 \, \text{eV} \)) when light of frequency \( 6.4 \times 10^{14} \, \text{Hz} \) is incident on it. Calculate: Energy of a photon in the incident light, The maximum kinetic energy of the emitted electrons, and The stopping potential.