Advertisements
Advertisements
प्रश्न
A charge of 5000 C flows through an electric circuit in 2 hours and 30 minutes. Calculate the magnitude of current in a circuit.
Advertisements
उत्तर
Charge = Q = 5000 C
Time = t = 2 houe 30 minutes
t = 2 × 60 + 30 = 150 min
t = 150 × 60 second
t = 9000 second
Electric current = I = ?
I = `"Q"/"t"`
I = `5000/9000 = 0.555` A
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
What is a magnetic field? How can the direction of magnetic field lines at a place be determined?
Which of the following statements is incorrect regarding magnetic field lines?
(a) The direction of magnetic field at a point is taken to be the direction in which the north pole a magnetic compass needle points.
(b) Magnetic field lines are closed curves.
(c) If magnetic field lines are parallel and equidistant, they represent zero field strength.
(d) Relative strength of magnetic field is shown by the degree of closeness of the field lines.
Explain the method of plotting the magnetic field lines by using a small compass needle.
Can two magnetic field lines intersect each other? Give reason to your answer.
Sketch four magnetic field lines as obtained in a limited space on a horizontal plane in the earth's magnetic field alone.
Draw the pattern of magnetic field lines near a bar magnet placed with its North Pole pointing towards the geographic North. Indicate the position of neutral points by marking X.
Repulsion is a surer test of magnetic condition of a body than attraction. Explain.
If the key in the arrangement is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are

Magnetic field lines determine ______.
