The current through a flashlight bulb is 40 mA and the total battery voltage is

Question

The current through a flashlight bulb is 40 mA and the total battery voltage is 4.5 V. The resistance of the bulb is approximately

Options:

A . 112 Ω

B . 11.2 Ω

C . 1.2 Ω

D . 18 Ω

Answer: Option A

Submit Your Solution Below and Earn Points !

Next Question

More Questions on This Topic :

Question 1. How much resistance is required to limit the current from a 12 V battery to 3.6 mA?....

Question 2. The formula to find I when the values of V and R are known is....

Question 3. What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source?....

Question 4. We have three resistances of values 2 Î©, 3 Î© and 6 Î©. Which of the following combination will give an effectiv....following combination will give an effective resistance of 4 Î©?

Question 5. Which of the following could be the value of resistivity of copper? ....

Question 6. Conductance is expressed in terms of ....

Question 7. A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is vd. ....diameter of wire is made d/3, then drift velocity becomes

Question 8. Two resistances R1 and R2 give combined resistance of 4.5 ohms when in series and 1 ohm when in parallel. The resistanc....series and 1 ohm when in parallel. The resistances are

Question 9. Two 1 kilo ohm, 1/2 W resistors are connected in series. Their combined resistance value and wattage will be ....

Question 10. The resistance of a 100 W, 200 V lamp is ....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

DSP Combined 1 Free Revision Test SAIL JO E-0

GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0

BSP Plant Specific Review Test SAIL JO E-0

BSL Combined 1 Free Revision Test SAIL JO E-0

GFM Combined 1 Free Revision Test SAIL JO E-0