Chapter 6: Electrical Circuits & Electric Currents - Science Mcqs for Grade 7


Q.  If a '3kW' electric fire is used for 4 hours, the consumed units will be equal to

a. 0.75
b. 12
c. 10
d. 8


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The consumed number of units of electricity can be found by applying formula
Category: Science Mcqs,   Published by: teswesm
MCQs:  For each electric appliance, the fuse should be fixed with
Category: Science Mcqs,   Published by: teswesm
MCQs:  In electric motors, a coil or a wire carrying an electric current produces
Category: Science Mcqs,   Published by: teswesm
MCQs:  When electrons vibrate fast, some of the electrical energy is changed to
Category: Science Mcqs,   Published by: teswesm
MCQs:  The process used in electroplating is called
Category: Science Mcqs,   Published by: teswesm
MCQs:  The bulb glows because the filament is
Category: Science Mcqs,   Published by: teswesm
MCQs:  One method of making a strong electromagnet is to increase
Category: Science Mcqs,   Published by: teswesm
MCQs:  Small magnets are also used in
Category: Science Mcqs,   Published by: teswesm
MCQs:  When the current flows one way, the magnet forces push the electromagnet and cone
Category: Science Mcqs,   Published by: teswesm
MCQs:  The larger the current, the greater the number of
Category: Science Mcqs,   Published by: teswesm
MCQs:  The consumption of amount of electrical energy depends on
Category: Science Mcqs,   Published by: teswesm
MCQs:  Normally electric appliances have power rating
Category: Science Mcqs,   Published by: teswesm
MCQs:  When the current is passed through the solution of copper sulphate, the copper sulphate turns into
Category: Science Mcqs,   Published by: teswesm
MCQs:  Keep 'TV' and other electric appliances away from
Category: Science Mcqs,   Published by: teswesm
MCQs:  Huge magnets are used to carry
Category: Science Mcqs,   Published by: teswesm
MCQs:  Insulators do not allow electricity to pass through because their
Category: Science Mcqs,   Published by: teswesm
MCQs:  Resistance also depends upon
Category: Science Mcqs,   Published by: teswesm
MCQs:  All electric objects we see around us like electric bell, electric motor, telephone and loudspeaker use electricity to make
Category: Science Mcqs,   Published by: teswesm
MCQs:  The number of charges an atom contains, is
Category: Science Mcqs,   Published by: teswesm
MCQs:  Small 'amperes' are measured by
Category: Science Mcqs,   Published by: teswesm