Question Text
Question 1 :
An electric motor takes 5 A from a 220 V line. How much energy is consumed in 2 h.?
Question 2 :
What is the commercial unit of electrical energy (Represent it in terms of joules) ?
Question 4 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d33273b230584979bbd.PNG' />
Above image is the symbol of ______ in circuit diagram.
Question 6 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d2e273b230584979bb7.PNG' />
Above image is the symbol of ______ in circuit diagram.
Question 8 :
A rectangular coil of copper wire is rotated in a magnetic field. The direction of induced current changes once in each
Question 9 :
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is pushed into the coil?
Question 11 :
The most important safety method used for protecting home appliances from short circuiting or overloading is
Question 12 :
Choose the incorrect statement from the following regarding magnetic lines of field
Question 14 :
For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is
Question 15 :
Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right hand rule to find out the direction of magnetic field outside the loop.