Alerts Wishlist Cart

A 100 W bulb is connected to a 220 V supply. What is the current flowing through

Practice Questions

Q1
A 100 W bulb is connected to a 220 V supply. What is the current flowing through the bulb?
  1. 0.45 A
  2. 1.0 A
  3. 2.2 A
  4. 2.5 A

Questions & Step-by-Step Solutions

A 100 W bulb is connected to a 220 V supply. What is the current flowing through the bulb?
  • Step 1: Identify the power of the bulb, which is given as 100 W.
  • Step 2: Identify the voltage of the supply, which is given as 220 V.
  • Step 3: Use the formula P = VI, where P is power, V is voltage, and I is current.
  • Step 4: Rearrange the formula to find current I: I = P / V.
  • Step 5: Substitute the values into the formula: I = 100 W / 220 V.
  • Step 6: Calculate the current: I ≈ 0.45 A.
  • Power Calculation – Understanding the relationship between power (P), voltage (V), and current (I) using the formula P = VI.
  • Ohm's Law – Applying Ohm's Law to find current when power and voltage are known.
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