Does high resistance mean low current?

From Ohm’s law:

The relationship between voltage, currentand resistance: V = IR

The current is inversely proportional to the resistance. This means high resistance will cause the current to be low.


Related Questions

  1. What Is The Formula Of Ammeter?
  2. Why is the series arrangement not used for domestic circuits?
  3. What is the necessary condition for a conductor to obey Ohm's Law?
  4. Define: 1 volt, Potential difference
  5. Draw a circuit diagram to verify ohm’s law.
  6. Is resistance constant in Ohm's law?
  7. The resistance R= V/I, where V=100 ± 5.0V and I = 10 ± 0.2A. What is the total error in R?
  8. What are the applications of ohm's law used in daily life?
  9. Why is the curve representing Ohm's law linear?
  10. What are ohmic and non-ohmic devices? Give examples.
  11. State And Explain Joules Law Of Heating.
  12. Obtain the equation J = σE of Ohm's law on the basis of drift velocity
  13. A small bulb has a resistance of 2 ohms when it is cold. It draws 0.4-ampere current from a source of4V and then starts glowing. Calculate the resistance when it is glowing
  14. Find the current through a resistance 2 ohm if the voltage across the resistance is 6 V.
  15. Why Do We Use Ohm's Law?

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CBSE CLASS XII Related Questions

  • 1.
    Two parallel plate capacitors X and Y are connected in series to a 6 V battery. They have the same plate area and same plate separation but capacitor X has air between its plates, whereas capacitor Y contains a material of dielectric constant 4. Calculate the capacitances of X and Y, if the equivalent capacitance of the combination of X and Y is \( 4 \, \mu\text{F} \). Calculate the potential difference across the plates of X and Y.


      • 2.
        A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.


          • 3.
            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.


              • 4.
                The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

                  • \( \frac{q}{4 \pi \epsilon_0 l^2} \) pointing along MA
                  • \( \frac{q}{\pi \epsilon_0 l^2} \) pointing along AM
                  • \( \frac{q}{2 \pi \epsilon_0 l^2} \) pointing along AM
                  • Zero

                • 5.
                  A long solenoid of length \( L \) and radius \( r_1 \) having \( N_1 \) turns is surrounded symmetrically by a coil of radius \( r_2 \, (r_2>r_1) \) having \( N_2 \) turns (\( N_2 \ll N_1 \)) around its mid-point. Derive an expression for the mutual inductance of solenoid and coil. Is \( M_{12} = M_{21} \) valid in this case?


                    • 6.
                      Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

                        CBSE CLASS XII Previous Year Papers

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