MYTUTOR SUBJECT ANSWERS

662 views

Resistors of 5 ohms and 10 ohms are connected in series with a battery supplying 3 volts. What is the total resistance ? And calculate the current in the circuit.

For the first part of the question we note that the resistors are in series, this means we can simply add together the resistance, giving a value of:
15 ohms

For the second part we use the equation V=IR, 
substituting in the known voltage and calculated resistance:
3 = 15 * I
I = 3/15 = 0.2 Amps

Alexander N. GCSE Physics tutor, IB Physics tutor

1 year ago

Answered by Alexander, a GCSE Physics tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

108 SUBJECT SPECIALISTS

£18 /hr

George B.

Degree: Physics with Industrial experience (Masters) - Bristol University

Subjects offered: Physics, Maths

Physics
Maths

“Myself: I'm a Physics student at the University of Bristol. My passion is Physics and Maths. I think any theory can be made interesting and exciting. My tutorials will shows my informative and passionate nature.  I have numerous expe...”

£22 /hr

Ryan B.

Degree: Natural Sciences (Masters) - Durham University

Subjects offered: Physics, Science+ 2 more

Physics
Science
Maths
Chemistry

“I am currently a 1st year student at Durham University studying Natural Sciences. I have always had apassion for science and believe that developing your interest in the subject, during these sessions, will be the key to your success....”

£18 /hr

Peter H.

Degree: Mathematics (Bachelors) - Durham University

Subjects offered: Physics, Maths+ 2 more

Physics
Maths
Further Mathematics
.STEP.

“About me: I am a Mathematics student at Durham University, and I am currently in my 3rd year. I would very much like to give assistance and help students of all abilities to reach the goals they aspire to in Maths and Physics, whether...”

MyTutor guarantee

About the author

Alexander N.

Currently unavailable: for regular students

Degree: Physics (Bachelors) - Durham University

Subjects offered: Physics

Physics

“About me:I am a physics student, studying at Durham University and I have always loved teaching people. I initially started it as my favourite way to learn and study. I would try to teach anything I had learnt to a friend, my parents...”

MyTutor guarantee

You may also like...

Posts by Alexander

A lamp has a rating of 18V 9W. How much energy is transferred to the bulb in 5 minutes? Calculate the current through it when connected to a 18V supply.

On a see-saw Mary, weight 600N balances John, weight 200N when she sits 1.5m away from the pivot. How far from the pivot is John?

Resistors of 5 ohms and 10 ohms are connected in series with a battery supplying 3 volts. What is the total resistance ? And calculate the current in the circuit.

The loudspeaker produces a sound wave with a frequency of 850 hertz and a wavelength of 0.4 metres. Calculate the speed of this sound wave. Give the unit

Other GCSE Physics questions

Why does resistance increase with temperature?

A boy kicks a ball and it is accelerated uniformly from rest so that after 10 seconds it has achieved a speed of 15m/s. Find the ball's acceleration.

What is the difference between speed and velocity?

A 2 kW electric fire is switched on for 30 minutes. How many Units of electricity does it use?

View GCSE Physics tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok