Alerts Wishlist Cart

If a 9V battery is connected to a 3Ω resistor, what is the energy consumed in 10

Practice Questions

Q1
If a 9V battery is connected to a 3Ω resistor, what is the energy consumed in 10 seconds? (2023)
  1. 30J
  2. 90J
  3. 60J
  4. 45J

Questions & Step-by-Step Solutions

If a 9V battery is connected to a 3Ω resistor, what is the energy consumed in 10 seconds? (2023)
  • Step 1: Identify the voltage of the battery, which is 9V.
  • Step 2: Identify the resistance of the resistor, which is 3Ω.
  • Step 3: Use the formula for power (P) which is P = V²/R.
  • Step 4: Substitute the values into the formula: P = 9²/3.
  • Step 5: Calculate 9², which is 81.
  • Step 6: Divide 81 by 3 to find the power: 81/3 = 27W.
  • Step 7: Identify the time duration, which is 10 seconds.
  • Step 8: Use the formula for energy (E) which is E = P * t.
  • Step 9: Substitute the power and time into the formula: E = 27W * 10s.
  • Step 10: Calculate the energy: 27 * 10 = 270J.
  • Ohm's Law – The relationship between voltage (V), current (I), and resistance (R) in an electrical circuit.
  • Power Calculation – The formula for calculating power in an electrical circuit, P = V²/R.
  • Energy Consumption – The calculation of energy consumed over time, E = P * t.
Biology (School & UG)
Biology (School & UG)
Chemistry (School & UG)
Chemistry (School & UG)
Civil Engineering
Civil Engineering
Commerce & Accountancy
Commerce & Accountancy
Computer Science & IT
Computer Science & IT
Current Affairs & GK
Current Affairs & GK
Data Structures & Algorithms
Data Structures & Algorithms
eBooks
eBooks
Electrical & Electronics Engineering
Electrical & Electronics Engineering
English (School)
English (School)
General Aptitude
General Aptitude
General Knowledge
General Knowledge
General Knowledge & Current Affairs
General Knowledge & Current Affairs
Languages & Literature
Languages & Literature
Law & Legal Studies
Law & Legal Studies
Major Competitive Exams
Major Competitive Exams
Mathematics (School)
Mathematics (School)
Mechanical Engineering
Mechanical Engineering
Medical Science
Medical Science
Physics (School & Undergraduate)
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Quantitative Aptitude & Reasoning
Social Science (School)
Social Science (School)
Technical
Technical
Verbal and Reasoning
Verbal and Reasoning
Vocational & Skill Development
Vocational & Skill Development
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely