Electromagnetism
Review the permitted syllabus objectives and practice reviewed questions for this CSCA topic.
What to study
- Coulomb law, electric field strength and electric potential
- Ohm law and series-parallel DC circuits
- magnetic flux density, Ampere force and Lorentz force
- Faraday law and Lenz law
The scope shown here follows the syllabus-derived guardrails used by the CSCAPrep question factory. Related advanced material is not added unless it appears in the defined scope.
Practice this topic
Standard · ElectromagnetismTwo point charges, +2 μC and +3 μC, are separated by 0.5 m in vacuum. What is the magnitude of the electrostatic…Easy · ElectromagnetismA 6 V battery is connected to two resistors in series: 2 Ω and 4 Ω. What is the current through the…Standard · ElectromagnetismTwo point charges, +2 μC and +8 μC, are separated by 0.3 m in vacuum. What is the magnitude of the electrostatic…Easy · Electromagnetism在真空中，两个点电荷之间的库仑力大小为F。若将它们之间的距离增大为原来的2倍，同时保持电荷量不变，则库仑力变为多少？Standard · Electromagnetism两个电阻R1=6 Ω和R2=3 Ω并联，接在12 V的电源上（电源内阻不计）。求干路电流大小。Standard · Electromagnetism真空中两个点电荷，电荷量分别为 +2×10⁻⁶ C 和 -4×10⁻⁶ C，相距0.3 m。已知静电力常量 k = 9×10⁹ N·m²/C²，求它们之间的静电力大小。Easy · Electromagnetism两个电阻 R1 = 10 Ω 和 R2 = 20 Ω 串联后接在电压为30 V的电源两端。求通过 R1 的电流大小。Standard · Electromagnetism在真空中有两个点电荷，电荷量分别为 +2×10⁻⁶ C 和 -3×10⁻⁶ C，相距0.3 m，静电力常量 k = 9×10⁹ N·m²/C²。求它们之间的静电力大小。Easy · Electromagnetism两个电阻 R1 = 6 Ω 和 R2 = 3 Ω 串联后接在电压为18 V的电源两端，求 R1 两端的电压。Standard · Electromagnetism在真空中，两个点电荷分别带 +2×10⁻⁶ C 和 -3×10⁻⁶ C 的电量，相距0.3 m。已知静电力常量 k = 9×10⁹ N·m²/C²，求它们之间的静电力大小。