Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

What is electrical resistivity of a material? What is its unit? Describe an experiment to study the factors on which the resistance of conducting wire


Science - Exemplar Problems



Resistivity is the property of the material that resists the flow of electrons through it. SI unit of resistivity is ohm (Ω).
The experiment involves setting up an circuit that consists of a battery resistance an rheostat an voltmeter and ammeter. On variable resistance the reading of voltmeter and ammeter should remain constant that is equal to Resistance. 
R = V/I which remains constant
Hence resistance depends on area and length of the conductor 
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts