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Current
The SPM Physics Workbook is developed under the One-School.net Free Books Project. The content of this book is strictly follow Malaysia SPM (Sijil Pelajaran Malaysia) syllabus. The aim of this project is to provide a complete electronic supplementary network for students to develop self-learning skills by breaking the spoon-feed rituals and to encourage them to compile educational information from the Internet.
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1)
What is electric current?
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Electric current is flow of charge particles in a conductor. |
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Electric current is the motion of electrons in a conductor. |
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Electric current is the rate of flow of charge. |
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2)Which of the followings are the units of current?
I. Volt
II. Volt per second
III. Ampere
IV. Coulomb per second
I. Volt
II. Volt per second
III. Ampere
IV. Coulomb per second
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3) Which of the followings show the correct connection of an ammeter to measure the current passes through a resistor?
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4)
Which of the following electric component can be used to control the magnitude of current in a circuit?
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5) A 30C of electric charge passing through a point in a conductor in 15 seconds. Calculate the electric current in the conductor.
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6) A current of 0.5A is flowing through a conductor. How long does it take for 20C of charge to pass through the conductor?
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7) An electric current of 50mA flows through a fan for 10 seconds. Calculate the total electric charge passes through the fan in this period.
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8) A battery can supply a current of 0.5 A for 2 hours .What is the amount of charge stored in the battery?
Magnetic Field
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force.
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force.
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