What is an ammeter? How is it connected in a circuit? Draw a diagram to illustrate your answer.
Download our app for free and get startedPlay store
Ammeter is a device used for the measurement of electric current. It is always connected in series with the circuit in which the current is to be measured.
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    Two resistances when connected in parallel give resultant value of $2$ ohm; when connected in series the value becomes $9$ ohm. Calculate the value of each resistance.
    View Solution
  • 2
    How does the resistance of a wire change when:
    1. Its length is tripled?
    2. Its diameter is tripled?
    3. Its material is changed to one whose resistivity is three times?
    View Solution
  • 3
    Calculate the power used in the $2Ω$ resistor in each of the following circuits:
    1. A $6V$ battery in series with $1Ω$ and $2Ω$ resistors.
    2. A $4V$ battery in parallel with $12Ω$ and $2Ω$ resistors.
    View Solution
  • 4
    Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a Parallel circuit to an identical power supply line.
    1. Which circuit would have the highest voltage across each bulb?
    2. In which circuit would the bulbs be brighter?
    3. In which circuit, if one bulb blows out, all others will stop glowing
    4. Which circuit would have less current in it?
    View Solution
  • 5
    Consider the circuit given below where A, B and C are three identical light bulbs of constant resistance.
    1. List the bulbs in order of increasing brightness.
    2. If C burns out, what will be the brightness of A now compared with before?
    3. If B burns out instead, what will be the brightness of A and C compared with before?
    View Solution
  • 6
    Derive the expression for the heat produced due to a current ‘I’ flowing for a time interval ‘t’ through a resistor ‘R’ having a potential difference ‘V’ across its ends. With which name is this relation known?
    View Solution
  • 7
    Distinguish between resistance and resistivity.
    View Solution
  • 8
    The electrical resistivities of four materials P, Q, R and S are given below:
    $\begin{matrix}\text{P}&6.84\times10^{-8}\Omega\text{m}\\\text{Q}&1.70\times10^{-8}\Omega\text{m}\\\text{R}&1.0\times10^{15}\Omega\text{m}\\\text{S}&11.0\times10^{-7}\Omega\text{m}\end{matrix}$
    Which material will you use for making:
    1. Heating element of electric iron.
    2. Connecting wires of electric iron.
    3. Covering of connecting wires?
    Give reason for your choice in each case.
    View Solution
  • 9
    A p.d. of 6V is applied to two resistors of $3 Ω$ and $6 Ω$ connected in parallel. Calculate:
    The combined resistance.
    The current flowing in the main circuit.
    The current flowing in the $3 Ω$ resistor.
    View Solution
  • 10
    If a potential difference of 10V causes a current of 2A to flow for 1 minute, how much energy is transferred?
    View Solution