Given below is a circuit showing current flowing in it. Identify each component $A, B, C, D$ of this circuit.
Given below is a circuit showing current flowing in it. Identify each component $A, B, C, D$ of this circuit.
$A =$ Electric bulb, $B =$ Rheostat, $C =$ Electric cell, $D =$ Ammeter.
Similar Questions
$(i)$ Name and state the law that gives relationship between the current through a conductor and the potential difference across its two terminals. Also, express this law mathematically.
$(ii)$ Draw the $V-I$ graph for this law. Justify your answer.
$(iii)$ Write the name and use of the circuit components whose symbols are given below.
$(i)$ Name and state the law that gives relationship between the current through a conductor and the potential difference across its two terminals. Also, express this law mathematically.
$(ii)$ Draw the $V-I$ graph for this law. Justify your answer.
$(iii)$ Write the name and use of the circuit components whose symbols are given below.
A nichrome wire has a resistance of $10\, \Omega$. Find the resistance of another nichrome wire, whose length is three times and area of cross-section four times the first wire.
A nichrome wire has a resistance of $10\, \Omega$. Find the resistance of another nichrome wire, whose length is three times and area of cross-section four times the first wire.
Explain the term resistance. Give its $SI$ unit of measurement.
Explain the term resistance. Give its $SI$ unit of measurement.
Two bulbs are marked $60\, W , 220\, V$ and $100\, W$, $220\, V$. These are connected in parallel to $220\, V$ mains. Which one out of the two will glow brighter ?
Two bulbs are marked $60\, W , 220\, V$ and $100\, W$, $220\, V$. These are connected in parallel to $220\, V$ mains. Which one out of the two will glow brighter ?
What is the unit of resistance?
What is the unit of resistance?