Question Text
Question 1 :
State true or false: When connected to the same source the current will flow more easily through a thick wire than thin wire.
Question 3 :
Which of the following terms does not represent electrical power in a circuit?
Question 4 :
Resistance of a metal wire of length 1 m is 26 Ω at 20°C. If the diameter of the wire is 0.3 mm, what will be the resistivity of the metal at that temperature?
Question 5 :
How much work is done in moving a charge of 2 C across two points having a potential difference 12 V?
Question 6 :
In an electrical circuit two resistors of $2\Omega \ and \ 4\Omega$ respectively are connected in series to a 6 V battery. The heat dissipated by the $4\Omega$ resistor in 5 s will be
Question 7 :
What is the lowest total resistance that can be secured by combinations of four coils of resistance 4 Ω, 8 Ω, 12 Ω, 24 Ω?
Question 9 :
What is the name of a device that helps to maintain a potential difference across a conductor?