All Exams Test series for 1 year @ ₹349 only
Question

Calculate the current flowing through a resistor of 10 $\Omega$ when a potential difference of 140 V is applied across it.

This question was previously asked in
RRB ALP 2018 CBT 2 Fitter Question Paper (21-Jan-2019) (Shift 3)
The correct answer is
14 Amperes

Calculate Current Using Ohm's Law

To find the current flowing through a resistor, we use Ohm's Law.

Ohm's Law Formula

Ohm's Law states the relationship between voltage ($V$), current ($I$), and resistance ($R$): $V = I \times R$

Calculating Current

We need to find the current ($I$). We can rearrange the formula to solve for $I$: $I = \frac{V}{R}$

Applying Given Values

The problem provides:

  • Potential difference ($V$) = 140 V
  • Resistance ($R$) = 10 $\Omega$

Substitute these values into the rearranged formula:

$I = \frac{140 \text{ V}}{10 \text{ } \Omega}$

Result

Performing the calculation:

$I = 14 \text{ A}$

Therefore, the current flowing through the resistor is 14 Amperes.

Was this answer helpful?

Similar Questions

  1. Two resistors, one of 12 Ω and the other of 24 Ω, are connected in parallel. This combination is connected in series with a 22 Ω resistor and a 12 V battery. The current in 24 Ω resistor is:

  2. If an electric load draws a current of 2 A for 1 second, then calculate the number of electrons (with charge 1.6 × 10⁻¹⁹ C) passing through the load.

  3. How is a voltmeter connected in a circuit to measure potential difference?

  4. A voltmeter with a resistance of 10,000 ohms is connected across a circuit that has a voltage of 50 V. What is the current flowing through the voltmeter?

  5. An electric lamp with a resistance of 35 ohms and a conductor with a resistance of 6 ohms are connected to an 8 V battery in series. Calculate the current flowing through the circuit.

  6. The ______ across the ends of a resistor is directly proportional to the current through it, provided its temperature remains the same.

  7. Which of the following gives the correct relation between power ‘P’, resistance ‘R’ and charge ‘Q’ flowing through a wire in ‘t’ seconds?

  8. The given symbol stands for a/an _________ in an electric circuit.

  9. Two resistors of R Ω and 15 Ω are connected in parallel to get an effective resistance of 12 Ω. Find R.

  10. Which of the following correctly describes the direction of electric current?


Important Questions from Current Electricity

  1. Which of the following is a bad conductor of electricity?

  2. In general, in an alternating current circuit

  3. The laws of electromagnetic induction have been used in the construction of a

  4. A 220 volt and 100 watt bulb is connected to a 110 volt source. The power consumption by the bulb is

  5. In the series combination of resistance in current electricity, which of the following is correct?

Need Expert Advice?
Upcoming Exams
RRB Technician
October 06, 2026
RRB JE
October 27, 2026
RRB ALP
November 03, 2026
Test Series
RRB ALP img
Railways
RRB ALP 2026 Mock Test series
1035 Tests 1 Tests Free
1087 Attempts
4.3(239)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App